939685005 has 36 divisors (see below), whose sum is σ = 1894716252. Its totient is φ = 429569280.

The previous prime is 939685003. The next prime is 939685007. The reversal of 939685005 is 500586939.

It is an interprime number because it is at equal distance from previous prime (939685003) and next prime (939685007).

It can be written as a sum of positive squares in 2 ways, for example, as 295083684 + 644601321 = 17178^2 + 25389^2 .

It is not a de Polignac number, because 939685005 - 2¹ = 939685003 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (939685003) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 210876 + ... + 215285.

It is an arithmetic number, because the mean of its divisors is an integer number (52631007).

Almost surely, 2^939685005 is an apocalyptic number.

It is an amenable number.

939685005 is an abundant number, since it is smaller than the sum of its proper divisors (955031247).

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

939685005 is a wasteful number, since it uses less digits than its factorization.

939685005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426186 (or 426176 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The square root of 939685005 is about 30654.2820010517. The cubic root of 939685005 is about 979.4766763753.

The spelling of 939685005 in words is "nine hundred thirty-nine million, six hundred eighty-five thousand, five".