79659716 has 6 divisors (see below), whose sum is σ = 139404510. Its totient is φ = 39829856.

The previous prime is 79659709. The next prime is 79659719. The reversal of 79659716 is 61795697.

It can be written as a sum of positive squares in only one way, i.e., 64480900 + 15178816 = 8030^2 + 3896^2 .

It is not an unprimeable number, because it can be changed into a prime (79659719) 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, 9957461 + ... + 9957468.

It is an arithmetic number, because the mean of its divisors is an integer number (23234085).

Almost surely, 2^79659716 is an apocalyptic number.

It is an amenable number.

79659716 is a deficient number, since it is larger than the sum of its proper divisors (59744794).

79659716 is a wasteful number, since it uses less digits than its factorization.

79659716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19914933 (or 19914931 counting only the distinct ones).

The product of its digits is 714420, while the sum is 50.

The square root of 79659716 is about 8925.2291847325. The cubic root of 79659716 is about 430.2751366972.

The spelling of 79659716 in words is "seventy-nine million, six hundred fifty-nine thousand, seven hundred sixteen".