315974689 has 4 divisors (see below), whose sum is σ = 316108800. Its totient is φ = 315840580.

The previous prime is 315974647. The next prime is 315974717. The reversal of 315974689 is 986479513.

It is a happy number.

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 315974689 - 2¹⁷ = 315843617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315974089) 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, 63457 + ... + 68254.

It is an arithmetic number, because the mean of its divisors is an integer number (79027200).

Almost surely, 2^315974689 is an apocalyptic number.

It is an amenable number.

315974689 is a deficient number, since it is larger than the sum of its proper divisors (134111).

315974689 is a wasteful number, since it uses less digits than its factorization.

315974689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134110.

The product of its digits is 1632960, while the sum is 52.

The square root of 315974689 is about 17775.6768928781. The cubic root of 315974689 is about 681.1102745845.

The spelling of 315974689 in words is "three hundred fifteen million, nine hundred seventy-four thousand, six hundred eighty-nine".