79628474 has 4 divisors (see below), whose sum is σ = 119442714. Its totient is φ = 39814236.

The previous prime is 79628467. The next prime is 79628489. The reversal of 79628474 is 47482697.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47482697 = 503 ⋅94399.

It can be written as a sum of positive squares in only one way, i.e., 75568249 + 4060225 = 8693^2 + 2015^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19907117 + ... + 19907120.

Almost surely, 2^79628474 is an apocalyptic number.

79628474 is a deficient number, since it is larger than the sum of its proper divisors (39814240).

79628474 is a wasteful number, since it uses less digits than its factorization.

79628474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39814239.

The product of its digits is 677376, while the sum is 47.

The square root of 79628474 is about 8923.4788059366. The cubic root of 79628474 is about 430.2188790124.

The spelling of 79628474 in words is "seventy-nine million, six hundred twenty-eight thousand, four hundred seventy-four".