316656473 has 6 divisors (see below), whose sum is σ = 368355546. Its totient is φ = 271419792.

The previous prime is 316656449. The next prime is 316656491. The reversal of 316656473 is 374656613.

It can be written as a sum of positive squares in only one way, i.e., 160706329 + 155950144 = 12677^2 + 12488^2 .

It is not a de Polignac number, because 316656473 - 2⁶ = 316656409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 316656473.

It is not an unprimeable number, because it can be changed into a prime (316656443) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3231140 + ... + 3231237.

It is an arithmetic number, because the mean of its divisors is an integer number (61392591).

Almost surely, 2^316656473 is an apocalyptic number.

It is an amenable number.

316656473 is a deficient number, since it is larger than the sum of its proper divisors (51699073).

316656473 is an equidigital number, since it uses as much as digits as its factorization.

316656473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6462391 (or 6462384 counting only the distinct ones).

The product of its digits is 272160, while the sum is 41.

The square root of 316656473 is about 17794.8440004401. The cubic root of 316656473 is about 681.5998037676.

The spelling of 316656473 in words is "three hundred sixteen million, six hundred fifty-six thousand, four hundred seventy-three".