316922387 has 4 divisors (see below), whose sum is σ = 317836056. Its totient is φ = 316008720.

The previous prime is 316922357. The next prime is 316922401. The reversal of 316922387 is 783229613.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 316922387 - 2⁶ = 316922323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (316922317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 456314 + ... + 457007.

It is an arithmetic number, because the mean of its divisors is an integer number (79459014).

Almost surely, 2^316922387 is an apocalyptic number.

316922387 is a deficient number, since it is larger than the sum of its proper divisors (913669).

316922387 is an equidigital number, since it uses as much as digits as its factorization.

316922387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913668.

The product of its digits is 108864, while the sum is 41.

The square root of 316922387 is about 17802.3140911512. The cubic root of 316922387 is about 681.7905427702.

The spelling of 316922387 in words is "three hundred sixteen million, nine hundred twenty-two thousand, three hundred eighty-seven".