79101216 has 72 divisors (see below), whose sum is σ = 225811404. Its totient is φ = 26265600.

The previous prime is 79101193. The next prime is 79101223. The reversal of 79101216 is 61210197.

It can be written as a sum of positive squares in 2 ways, for example, as 67568400 + 11532816 = 8220^2 + 3396^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a self number, because there is not a number n which added to its sum of digits gives 79101216.

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, 131316 + ... + 131916.

Almost surely, 2^79101216 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 79101216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112905702).

79101216 is an abundant number, since it is smaller than the sum of its proper divisors (146710188).

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

79101216 is a wasteful number, since it uses less digits than its factorization.

79101216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074 (or 1063 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 27.

The square root of 79101216 is about 8893.8864395718. The cubic root of 79101216 is about 429.2672141619.

The spelling of 79101216 in words is "seventy-nine million, one hundred one thousand, two hundred sixteen".