3929860624 has 20 divisors (see below), whose sum is σ = 8061994044. Its totient is φ = 1849346048.

The previous prime is 3929860621. The next prime is 3929860639. The reversal of 3929860624 is 4260689293.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3184570624 + 745290000 = 56432^2 + 27300^2 .

It is not an unprimeable number, because it can be changed into a prime (3929860621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7223737 + ... + 7224280.

Almost surely, 2^3929860624 is an apocalyptic number.

3929860624 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

3929860624 is an abundant number, since it is smaller than the sum of its proper divisors (4132133420).

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

3929860624 is a wasteful number, since it uses less digits than its factorization.

3929860624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14448042 (or 14448036 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 49.

The square root of 3929860624 is about 62688.6004310194. The cubic root of 3929860624 is about 1578.0680097677.

The spelling of 3929860624 in words is "three billion, nine hundred twenty-nine million, eight hundred sixty thousand, six hundred twenty-four".