78568860 has 48 divisors (see below), whose sum is σ = 220953600. Its totient is φ = 20860224.

The previous prime is 78568837. The next prime is 78568877. The reversal of 78568860 is 6886587.

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, 11601 + ... + 17079.

It is an arithmetic number, because the mean of its divisors is an integer number (4603200).

Almost surely, 2^78568860 is an apocalyptic number.

It is an amenable number.

78568860 is an abundant number, since it is smaller than the sum of its proper divisors (142384740).

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

78568860 is a wasteful number, since it uses less digits than its factorization.

78568860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5730 (or 5728 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 48.

The square root of 78568860 is about 8863.9077161261. The cubic root of 78568860 is about 428.3020475399.

The spelling of 78568860 in words is "seventy-eight million, five hundred sixty-eight thousand, eight hundred sixty".