631682874 has 28 divisors (see below), whose sum is σ = 1420639866. Its totient is φ = 210560472.

The previous prime is 631682827. The next prime is 631682897. The reversal of 631682874 is 478286136.

631682874 is a `hidden beast` number, since 631 + 6 + 8 + 2 + 8 + 7 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 332150625 + 299532249 = 18225^2 + 17307^2 .

It is an unprimeable number.

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 13 ways as a sum of consecutive naturals, for example, 215169 + ... + 218084.

Almost surely, 2^631682874 is an apocalyptic number.

631682874 is an abundant number, since it is smaller than the sum of its proper divisors (788956992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

631682874 is an equidigital number, since it uses as much as digits as its factorization.

631682874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433273 (or 433258 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 631682874 is about 25133.3020910504. The cubic root of 631682874 is about 858.0245237257.

The spelling of 631682874 in words is "six hundred thirty-one million, six hundred eighty-two thousand, eight hundred seventy-four".