316897728 has 56 divisors (see below), whose sum is σ = 958242432. Its totient is φ = 90541824.

The previous prime is 316897723. The next prime is 316897753. The reversal of 316897728 is 827798613.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316897723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116550 + ... + 119237.

It is an arithmetic number, because the mean of its divisors is an integer number (17111472).

Almost surely, 2^316897728 is an apocalyptic number.

It is an amenable number.

316897728 is an abundant number, since it is smaller than the sum of its proper divisors (641344704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

316897728 is a wasteful number, since it uses less digits than its factorization.

316897728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235809 (or 235799 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 51.

The square root of 316897728 is about 17801.6214991781. The cubic root of 316897728 is about 681.7728594617.

The spelling of 316897728 in words is "three hundred sixteen million, eight hundred ninety-seven thousand, seven hundred twenty-eight".