316810393 has 4 divisors (see below), whose sum is σ = 322004068. Its totient is φ = 311616720.

The previous prime is 316810379. The next prime is 316810397. The reversal of 316810393 is 393018613.

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

It can be written as a sum of positive squares in 2 ways, for example, as 42146064 + 274664329 = 6492^2 + 16573^2 .

It is a cyclic number.

It is not a de Polignac number, because 316810393 - 2²⁵ = 283255961 is a prime.

It is a super-2 number, since 2×316810393² = 200737650225628898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (316810397) 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, 2596746 + ... + 2596867.

It is an arithmetic number, because the mean of its divisors is an integer number (80501017).

Almost surely, 2^316810393 is an apocalyptic number.

It is an amenable number.

316810393 is a deficient number, since it is larger than the sum of its proper divisors (5193675).

316810393 is an equidigital number, since it uses as much as digits as its factorization.

316810393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5193674.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 316810393 is about 17799.1683232672. The cubic root of 316810393 is about 681.7102229514.

The spelling of 316810393 in words is "three hundred sixteen million, eight hundred ten thousand, three hundred ninety-three".