631572712 has 32 divisors (see below), whose sum is σ = 1260834120. Its totient is φ = 295557120.

The previous prime is 631572659. The next prime is 631572719. The reversal of 631572712 is 217275136.

It can be written as a sum of positive squares in 4 ways, for example, as 377680356 + 253892356 = 19434^2 + 15934^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (631572719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11788 + ... + 37444.

Almost surely, 2^631572712 is an apocalyptic number.

It is an amenable number.

631572712 is a deficient number, since it is larger than the sum of its proper divisors (629261408).

631572712 is a wasteful number, since it uses less digits than its factorization.

631572712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25861 (or 25857 counting only the distinct ones).

The product of its digits is 17640, while the sum is 34.

The square root of 631572712 is about 25131.1104410450. The cubic root of 631572712 is about 857.9746425819.

The spelling of 631572712 in words is "six hundred thirty-one million, five hundred seventy-two thousand, seven hundred twelve".