78602664 has 96 divisors (see below), whose sum is σ = 231465600. Its totient is φ = 22176000.

The previous prime is 78602653. The next prime is 78602683. The reversal of 78602664 is 46620687.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 104289 + ... + 105039.

It is an arithmetic number, because the mean of its divisors is an integer number (2411100).

Almost surely, 2^78602664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78602664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115732800).

78602664 is an abundant number, since it is smaller than the sum of its proper divisors (152862936).

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

78602664 is a wasteful number, since it uses less digits than its factorization.

78602664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863 (or 852 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 78602664 is about 8865.8143449996. The cubic root of 78602664 is about 428.3634639267.

The spelling of 78602664 in words is "seventy-eight million, six hundred two thousand, six hundred sixty-four".