316172772 has 36 divisors (see below), whose sum is σ = 814298940. Its totient is φ = 103401792.

The previous prime is 316172737. The next prime is 316172777. The reversal of 316172772 is 277271613.

316172772 is a `hidden beast` number, since 31 + 617 + 2 + 7 + 7 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 243172836 + 72999936 = 15594^2 + 8544^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (316172777) 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, 80947 + ... + 84762.

It is an arithmetic number, because the mean of its divisors is an integer number (22619415).

Almost surely, 2^316172772 is an apocalyptic number.

It is an amenable number.

316172772 is an abundant number, since it is smaller than the sum of its proper divisors (498126168).

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

316172772 is a wasteful number, since it uses less digits than its factorization.

316172772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165772 (or 165767 counting only the distinct ones).

The product of its digits is 24696, while the sum is 36.

The square root of 316172772 is about 17781.2477627415. The cubic root of 316172772 is about 681.2525730958.

The spelling of 316172772 in words is "three hundred sixteen million, one hundred seventy-two thousand, seven hundred seventy-two".