631087924 has 12 divisors (see below), whose sum is σ = 1110011364. Its totient is φ = 313941824.

The previous prime is 631087913. The next prime is 631087931. The reversal of 631087924 is 429780136.

631087924 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 290020900 + 341067024 = 17030^2 + 18468^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 399649 + ... + 401224.

It is an arithmetic number, because the mean of its divisors is an integer number (92500947).

Almost surely, 2^631087924 is an apocalyptic number.

It is an amenable number.

631087924 is a deficient number, since it is larger than the sum of its proper divisors (478923440).

631087924 is a wasteful number, since it uses less digits than its factorization.

631087924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801074 (or 801072 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 631087924 is about 25121.4634127871. The cubic root of 631087924 is about 857.7550625446.

The spelling of 631087924 in words is "six hundred thirty-one million, eighty-seven thousand, nine hundred twenty-four".