479986831 has 2 divisors, whose sum is σ = 479986832. Its totient is φ = 479986830.

The previous prime is 479986817. The next prime is 479986849. The reversal of 479986831 is 138689974.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 479986831 - 2⁹ = 479986319 is a prime.

It is a super-2 number, since 2×479986831² = 460774715866845122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (479987831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239993415 + 239993416.

It is an arithmetic number, because the mean of its divisors is an integer number (239993416).

Almost surely, 2^479986831 is an apocalyptic number.

479986831 is a deficient number, since it is larger than the sum of its proper divisors (1).

479986831 is an equidigital number, since it uses as much as digits as its factorization.

479986831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2612736, while the sum is 55.

The square root of 479986831 is about 21908.6017582136. The cubic root of 479986831 is about 782.9663677666.

The spelling of 479986831 in words is "four hundred seventy-nine million, nine hundred eighty-six thousand, eight hundred thirty-one".