315889497 has 96 divisors (see below), whose sum is σ = 619673600. Its totient is φ = 155247840.

The previous prime is 315889493. The next prime is 315889499. The reversal of 315889497 is 794988513.

It is not a de Polignac number, because 315889497 - 2² = 315889493 is a prime.

It is not an unprimeable number, because it can be changed into a prime (315889493) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 434148 + ... + 434874.

Almost surely, 2^315889497 is an apocalyptic number.

It is an amenable number.

315889497 is a deficient number, since it is larger than the sum of its proper divisors (303784103).

315889497 is a wasteful number, since it uses less digits than its factorization.

315889497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784 (or 767 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 54.

The square root of 315889497 is about 17773.2804231521. The cubic root of 315889497 is about 681.0490562189.

The spelling of 315889497 in words is "three hundred fifteen million, eight hundred eighty-nine thousand, four hundred ninety-seven".