79734717 has 12 divisors (see below), whose sum is σ = 119144220. Its totient is φ = 51323328.

The previous prime is 79734703. The next prime is 79734719. The reversal of 79734717 is 71743797.

It can be written as a sum of positive squares in 2 ways, for example, as 61638201 + 18096516 = 7851^2 + 4254^2 .

It is not a de Polignac number, because 79734717 - 2⁶ = 79734653 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79734719) 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, 152488 + ... + 153009.

It is an arithmetic number, because the mean of its divisors is an integer number (9928685).

Almost surely, 2^79734717 is an apocalyptic number.

It is an amenable number.

79734717 is a deficient number, since it is larger than the sum of its proper divisors (39409503).

79734717 is a wasteful number, since it uses less digits than its factorization.

79734717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305532 (or 305529 counting only the distinct ones).

The product of its digits is 259308, while the sum is 45.

The square root of 79734717 is about 8929.4298250224. The cubic root of 79734717 is about 430.4101314997.

The spelling of 79734717 in words is "seventy-nine million, seven hundred thirty-four thousand, seven hundred seventeen".