79700688 has 60 divisors (see below), whose sum is σ = 223930980. Its totient is φ = 26462208.

The previous prime is 79700683. The next prime is 79700707. The reversal of 79700688 is 88600797.

It can be written as a sum of positive squares in 2 ways, for example, as 60093504 + 19607184 = 7752^2 + 4428^2 .

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79700683) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41248 + ... + 43136.

It is an arithmetic number, because the mean of its divisors is an integer number (3732183).

Almost surely, 2^79700688 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 79700688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111965490).

79700688 is an abundant number, since it is smaller than the sum of its proper divisors (144230292).

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

79700688 is a wasteful number, since it uses less digits than its factorization.

79700688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2196 (or 2187 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The square root of 79700688 is about 8927.5241808690. The cubic root of 79700688 is about 430.3488929702.

The spelling of 79700688 in words is "seventy-nine million, seven hundred thousand, six hundred eighty-eight".