316891728 has 60 divisors (see below), whose sum is σ = 933541440. Its totient is φ = 100070208.

The previous prime is 316891721. The next prime is 316891739. The reversal of 316891728 is 827198613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316891721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55176 + ... + 60647.

It is an arithmetic number, because the mean of its divisors is an integer number (15559024).

Almost surely, 2^316891728 is an apocalyptic number.

316891728 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

316891728 is an abundant number, since it is smaller than the sum of its proper divisors (616649712).

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

316891728 is a wasteful number, since it uses less digits than its factorization.

316891728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115856 (or 115847 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 316891728 is about 17801.4529744063. The cubic root of 316891728 is about 681.7685566403.

The spelling of 316891728 in words is "three hundred sixteen million, eight hundred ninety-one thousand, seven hundred twenty-eight".