7904017872 has 60 divisors (see below), whose sum is σ = 22450452960. Its totient is φ = 2595345984.

The previous prime is 7904017837. The next prime is 7904017907. The reversal of 7904017872 is 2787104097.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7904017837) and next prime (7904017907).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 399972 + ... + 419267.

It is an arithmetic number, because the mean of its divisors is an integer number (374174216).

Almost surely, 2^7904017872 is an apocalyptic number.

7904017872 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

7904017872 is an abundant number, since it is smaller than the sum of its proper divisors (14546435088).

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

7904017872 is a wasteful number, since it uses less digits than its factorization.

7904017872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819320 (or 819311 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 45.

The square root of 7904017872 is about 88904.5435959265. The cubic root of 7904017872 is about 1991.9692863121.

The spelling of 7904017872 in words is "seven billion, nine hundred four million, seventeen thousand, eight hundred seventy-two".