486997631 has 12 divisors (see below), whose sum is σ = 515801664. Its totient is φ = 459050400.

The previous prime is 486997627. The next prime is 486997649. The reversal of 486997631 is 136799684.

It is not a de Polignac number, because 486997631 - 2² = 486997627 is a prime.

It is a super-2 number, since 2×486997631² = 474333385199224322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (486997681) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 786440 + ... + 787058.

It is an arithmetic number, because the mean of its divisors is an integer number (42983472).

Almost surely, 2^486997631 is an apocalyptic number.

486997631 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

486997631 is a deficient number, since it is larger than the sum of its proper divisors (28804033).

486997631 is an frugal number, since it uses more digits than its factorization.

486997631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1310 (or 691 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 53.

The square root of 486997631 is about 22068.0228158301. The cubic root of 486997631 is about 786.7600203020.

The spelling of 486997631 in words is "four hundred eighty-six million, nine hundred ninety-seven thousand, six hundred thirty-one".