315672709 has 4 divisors (see below), whose sum is σ = 344370240. Its totient is φ = 286975180.

The previous prime is 315672701. The next prime is 315672719. The reversal of 315672709 is 907276513.

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 not a de Polignac number, because 315672709 - 2³ = 315672701 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 (315672701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14348749 + ... + 14348770.

It is an arithmetic number, because the mean of its divisors is an integer number (86092560).

Almost surely, 2^315672709 is an apocalyptic number.

It is an amenable number.

315672709 is a deficient number, since it is larger than the sum of its proper divisors (28697531).

315672709 is a wasteful number, since it uses less digits than its factorization.

315672709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28697530.

The product of its (nonzero) digits is 79380, while the sum is 40.

The square root of 315672709 is about 17767.1806711138. The cubic root of 315672709 is about 680.8932242461.

The spelling of 315672709 in words is "three hundred fifteen million, six hundred seventy-two thousand, seven hundred nine".