79478764 has 6 divisors (see below), whose sum is σ = 139087844. Its totient is φ = 39739380.

The previous prime is 79478743. The next prime is 79478771. The reversal of 79478764 is 46787497.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9934842 + ... + 9934849.

Almost surely, 2^79478764 is an apocalyptic number.

It is an amenable number.

79478764 is a deficient number, since it is larger than the sum of its proper divisors (59609080).

79478764 is a wasteful number, since it uses less digits than its factorization.

79478764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19869695 (or 19869693 counting only the distinct ones).

The product of its digits is 2370816, while the sum is 52.

The square root of 79478764 is about 8915.0863147813. The cubic root of 79478764 is about 429.9490907820.

The spelling of 79478764 in words is "seventy-nine million, four hundred seventy-eight thousand, seven hundred sixty-four".