631772032 has 16 divisors (see below), whose sum is σ = 1258608600. Its totient is φ = 315885952.

The previous prime is 631772023. The next prime is 631772051. The reversal of 631772032 is 230277136.

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 631771985 and 631772003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2467732 + ... + 2467987.

Almost surely, 2^631772032 is an apocalyptic number.

It is an amenable number.

631772032 is a deficient number, since it is larger than the sum of its proper divisors (626836568).

631772032 is an equidigital number, since it uses as much as digits as its factorization.

631772032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4935733 (or 4935721 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 31.

The square root of 631772032 is about 25135.0757309382. The cubic root of 631772032 is about 858.0648900523.

The spelling of 631772032 in words is "six hundred thirty-one million, seven hundred seventy-two thousand, thirty-two".