631243724 has 12 divisors (see below), whose sum is σ = 1104996144. Its totient is φ = 315530544.

The previous prime is 631243709. The next prime is 631243757. The reversal of 631243724 is 427342136.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5879 + ... + 36014.

It is an arithmetic number, because the mean of its divisors is an integer number (92083012).

Almost surely, 2^631243724 is an apocalyptic number.

It is an amenable number.

631243724 is a deficient number, since it is larger than the sum of its proper divisors (473752420).

631243724 is a wasteful number, since it uses less digits than its factorization.

631243724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45664 (or 45662 counting only the distinct ones).

The product of its digits is 24192, while the sum is 32.

The square root of 631243724 is about 25124.5641554237. The cubic root of 631243724 is about 857.8256429069.

The spelling of 631243724 in words is "six hundred thirty-one million, two hundred forty-three thousand, seven hundred twenty-four".