78985604 has 12 divisors (see below), whose sum is σ = 146355804. Its totient is φ = 37169664.

The previous prime is 78985591. The next prime is 78985619. The reversal of 78985604 is 40658987.

It can be written as a sum of positive squares in 2 ways, for example, as 32718400 + 46267204 = 5720^2 + 6802^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 580709 + ... + 580844.

It is an arithmetic number, because the mean of its divisors is an integer number (12196317).

Almost surely, 2^78985604 is an apocalyptic number.

It is an amenable number.

78985604 is a deficient number, since it is larger than the sum of its proper divisors (67370200).

78985604 is a wasteful number, since it uses less digits than its factorization.

78985604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1161574 (or 1161572 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 78985604 is about 8887.3845421474. The cubic root of 78985604 is about 429.0579774320.

The spelling of 78985604 in words is "seventy-eight million, nine hundred eighty-five thousand, six hundred four".