78902964 has 48 divisors (see below), whose sum is σ = 233788800. Its totient is φ = 22543488.

The previous prime is 78902959. The next prime is 78902987. The reversal of 78902964 is 46920987.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51429 + ... + 52940.

It is an arithmetic number, because the mean of its divisors is an integer number (4870600).

Almost surely, 2^78902964 is an apocalyptic number.

It is an amenable number.

78902964 is an abundant number, since it is smaller than the sum of its proper divisors (154885836).

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

78902964 is a wasteful number, since it uses less digits than its factorization.

78902964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104389 (or 104381 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 78902964 is about 8882.7340385717. The cubic root of 78902964 is about 428.9082888702.

The spelling of 78902964 in words is "seventy-eight million, nine hundred two thousand, nine hundred sixty-four".