79875317 has 4 divisors (see below), whose sum is σ = 79971360. Its totient is φ = 79779276.

The previous prime is 79875307. The next prime is 79875319. The reversal of 79875317 is 71357897.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79875317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79875319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46763 + ... + 48440.

It is an arithmetic number, because the mean of its divisors is an integer number (19992840).

Almost surely, 2^79875317 is an apocalyptic number.

It is an amenable number.

79875317 is a deficient number, since it is larger than the sum of its proper divisors (96043).

79875317 is an equidigital number, since it uses as much as digits as its factorization.

79875317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96042.

The product of its digits is 370440, while the sum is 47.

The square root of 79875317 is about 8937.2992005415. The cubic root of 79875317 is about 430.6629704617.

The spelling of 79875317 in words is "seventy-nine million, eight hundred seventy-five thousand, three hundred seventeen".