79617028 has 6 divisors (see below), whose sum is σ = 139329806. Its totient is φ = 39808512.

The previous prime is 79616983. The next prime is 79617029. The reversal of 79617028 is 82071697.

It can be written as a sum of positive squares in only one way, i.e., 60186564 + 19430464 = 7758^2 + 4408^2 .

It is a super-2 number, since 2×79617028² = 12677742295105568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (79617029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9952125 + ... + 9952132.

Almost surely, 2^79617028 is an apocalyptic number.

It is an amenable number.

79617028 is a deficient number, since it is larger than the sum of its proper divisors (59712778).

79617028 is a wasteful number, since it uses less digits than its factorization.

79617028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19904261 (or 19904259 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 79617028 is about 8922.8374410834. The cubic root of 79617028 is about 430.1982644382.

The spelling of 79617028 in words is "seventy-nine million, six hundred seventeen thousand, twenty-eight".