311290479 has 32 divisors (see below), whose sum is σ = 468239040. Its totient is φ = 204374016.

The previous prime is 311290457. The next prime is 311290481. The reversal of 311290479 is 974092113.

It is not a de Polignac number, because 311290479 - 2⁸ = 311290223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311290429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 783909 + ... + 784305.

It is an arithmetic number, because the mean of its divisors is an integer number (14632470).

Almost surely, 2^311290479 is an apocalyptic number.

311290479 is a deficient number, since it is larger than the sum of its proper divisors (156948561).

311290479 is a wasteful number, since it uses less digits than its factorization.

311290479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776 (or 770 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 311290479 is about 17643.4259428264. The cubic root of 311290479 is about 677.7277668127.

The spelling of 311290479 in words is "three hundred eleven million, two hundred ninety thousand, four hundred seventy-nine".