313990971 has 24 divisors (see below), whose sum is σ = 502723584. Its totient is φ = 173633040.

The previous prime is 313990967. The next prime is 313990987. The reversal of 313990971 is 179099313.

It is not a de Polignac number, because 313990971 - 2² = 313990967 is a prime.

It is not an unprimeable number, because it can be changed into a prime (313990571) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29895 + ... + 39008.

It is an arithmetic number, because the mean of its divisors is an integer number (20946816).

Almost surely, 2^313990971 is an apocalyptic number.

313990971 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

313990971 is a deficient number, since it is larger than the sum of its proper divisors (188732613).

313990971 is a wasteful number, since it uses less digits than its factorization.

313990971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68951 (or 68944 counting only the distinct ones).

The product of its (nonzero) digits is 45927, while the sum is 42.

The square root of 313990971 is about 17719.7903768639. The cubic root of 313990971 is about 679.6819237603.

The spelling of 313990971 in words is "three hundred thirteen million, nine hundred ninety thousand, nine hundred seventy-one".