939379860 has 72 divisors (see below), whose sum is σ = 2855328840. Its totient is φ = 249984768.

The previous prime is 939379813. The next prime is 939379867. The reversal of 939379860 is 68973939.

It can be written as a sum of positive squares in 4 ways, for example, as 68657796 + 870722064 = 8286^2 + 29508^2 .

It is a junction number, because it is equal to n+sod(n) for n = 939379797 and 939379806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (939379867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86494 + ... + 96746.

It is an arithmetic number, because the mean of its divisors is an integer number (39657345).

Almost surely, 2^939379860 is an apocalyptic number.

939379860 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 939379860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1427664420).

939379860 is an abundant number, since it is smaller than the sum of its proper divisors (1915948980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

939379860 is a wasteful number, since it uses less digits than its factorization.

939379860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10777 (or 10772 counting only the distinct ones).

The product of its (nonzero) digits is 2204496, while the sum is 54.

The square root of 939379860 is about 30649.3043966743. The cubic root of 939379860 is about 979.3706426985.

It can be divided in two parts, 9393 and 79860, that added together give a triangular number (89253 = T₄₂₂).

The spelling of 939379860 in words is "nine hundred thirty-nine million, three hundred seventy-nine thousand, eight hundred sixty".