78604618 has 16 divisors (see below), whose sum is σ = 121098240. Its totient is φ = 38250576.

The previous prime is 78604607. The next prime is 78604619. The reversal of 78604618 is 81640687.

It is not an unprimeable number, because it can be changed into a prime (78604619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10543 + ... + 16381.

It is an arithmetic number, because the mean of its divisors is an integer number (7568640).

Almost surely, 2^78604618 is an apocalyptic number.

78604618 is a deficient number, since it is larger than the sum of its proper divisors (42493622).

78604618 is a wasteful number, since it uses less digits than its factorization.

78604618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6021.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 78604618 is about 8865.9245428776. The cubic root of 78604618 is about 428.3670134895.

The spelling of 78604618 in words is "seventy-eight million, six hundred four thousand, six hundred eighteen".