78677604 has 36 divisors (see below), whose sum is σ = 199180800. Its totient is φ = 26186160.

The previous prime is 78677603. The next prime is 78677611. The reversal of 78677604 is 40677687.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 78677604.

It is not an unprimeable number, because it can be changed into a prime (78677603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31597 + ... + 33995.

It is an arithmetic number, because the mean of its divisors is an integer number (5532800).

Almost surely, 2^78677604 is an apocalyptic number.

It is an amenable number.

78677604 is an abundant number, since it is smaller than the sum of its proper divisors (120503196).

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

78677604 is a wasteful number, since it uses less digits than its factorization.

78677604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3320 (or 3315 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 45.

The square root of 78677604 is about 8870.0396842404. The cubic root of 78677604 is about 428.4995549947.

The spelling of 78677604 in words is "seventy-eight million, six hundred seventy-seven thousand, six hundred four".