79428634 has 16 divisors (see below), whose sum is σ = 124828416. Its totient is φ = 37857600.

The previous prime is 79428619. The next prime is 79428659. The reversal of 79428634 is 43682497.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5407 + ... + 13714.

It is an arithmetic number, because the mean of its divisors is an integer number (7801776).

Almost surely, 2^79428634 is an apocalyptic number.

79428634 is a deficient number, since it is larger than the sum of its proper divisors (45399782).

79428634 is a wasteful number, since it uses less digits than its factorization.

79428634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19221.

The product of its digits is 290304, while the sum is 43.

The square root of 79428634 is about 8912.2743449694. The cubic root of 79428634 is about 429.8586771927.

The spelling of 79428634 in words is "seventy-nine million, four hundred twenty-eight thousand, six hundred thirty-four".