313688965 has 4 divisors (see below), whose sum is σ = 376426764. Its totient is φ = 250951168.

The previous prime is 313688933. The next prime is 313689001. The reversal of 313688965 is 569886313.

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 165019716 + 148669249 = 12846^2 + 12193^2 .

It is a cyclic number.

It is not a de Polignac number, because 313688965 - 2⁵ = 313688933 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31368892 + ... + 31368901.

It is an arithmetic number, because the mean of its divisors is an integer number (94106691).

Almost surely, 2^313688965 is an apocalyptic number.

It is an amenable number.

313688965 is a deficient number, since it is larger than the sum of its proper divisors (62737799).

313688965 is an equidigital number, since it uses as much as digits as its factorization.

313688965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62737798.

The product of its digits is 933120, while the sum is 49.

The square root of 313688965 is about 17711.2666119620. The cubic root of 313688965 is about 679.4639409899.

The spelling of 313688965 in words is "three hundred thirteen million, six hundred eighty-eight thousand, nine hundred sixty-five".