313793437 has 2 divisors, whose sum is σ = 313793438. Its totient is φ = 313793436.

The previous prime is 313793413. The next prime is 313793477. The reversal of 313793437 is 734397313.

It is an a-pointer prime, because the next prime (313793477) can be obtained adding 313793437 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 190605636 + 123187801 = 13806^2 + 11099^2 .

It is a cyclic number.

It is not a de Polignac number, because 313793437 - 2⁷ = 313793309 is a prime.

It is a super-2 number, since 2×313793437² = 196932642208545938, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 313793437.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313793477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156896718 + 156896719.

It is an arithmetic number, because the mean of its divisors is an integer number (156896719).

Almost surely, 2^313793437 is an apocalyptic number.

It is an amenable number.

313793437 is a deficient number, since it is larger than the sum of its proper divisors (1).

313793437 is an equidigital number, since it uses as much as digits as its factorization.

313793437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 142884, while the sum is 40.

The square root of 313793437 is about 17714.2156755528. The cubic root of 313793437 is about 679.5393629161.

The spelling of 313793437 in words is "three hundred thirteen million, seven hundred ninety-three thousand, four hundred thirty-seven".