79799616 has 84 divisors (see below), whose sum is σ = 246349012. Its totient is φ = 24551424.

The previous prime is 79799593. The next prime is 79799633. The reversal of 79799616 is 61699797.

It can be written as a sum of positive squares in 2 ways, for example, as 7617600 + 72182016 = 2760^2 + 8496^2 .

It is a zygodrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2160 + ... + 12816.

Almost surely, 2^79799616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79799616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123174506).

79799616 is an abundant number, since it is smaller than the sum of its proper divisors (166549396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79799616 is a wasteful number, since it uses less digits than its factorization.

79799616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10688 (or 10675 counting only the distinct ones).

The product of its digits is 1285956, while the sum is 54.

The square root of 79799616 is about 8933.0630804892. The cubic root of 79799616 is about 430.5268753431.

The spelling of 79799616 in words is "seventy-nine million, seven hundred ninety-nine thousand, six hundred sixteen".