79290216 has 24 divisors (see below), whose sum is σ = 214744530. Its totient is φ = 26430048.

The previous prime is 79290163. The next prime is 79290217. The reversal of 79290216 is 61209297.

It can be written as a sum of positive squares in only one way, i.e., 74753316 + 4536900 = 8646^2 + 2130^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (79290217) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 550555 + ... + 550698.

Almost surely, 2^79290216 is an apocalyptic number.

It is an amenable number.

79290216 is an abundant number, since it is smaller than the sum of its proper divisors (135454314).

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

79290216 is a wasteful number, since it uses less digits than its factorization.

79290216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101265 (or 1101258 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 79290216 is about 8904.5053764934. The cubic root of 79290216 is about 429.6088312116.

The spelling of 79290216 in words is "seventy-nine million, two hundred ninety thousand, two hundred sixteen".