631706672 has 40 divisors (see below), whose sum is σ = 1298189232. Its totient is φ = 296755200.

The previous prime is 631706671. The next prime is 631706683. The reversal of 631706672 is 276607136.

It is not an unprimeable number, because it can be changed into a prime (631706671) 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, 186272 + ... + 189632.

Almost surely, 2^631706672 is an apocalyptic number.

It is an amenable number.

631706672 is an abundant number, since it is smaller than the sum of its proper divisors (666482560).

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

631706672 is a wasteful number, since it uses less digits than its factorization.

631706672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4077 (or 4071 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 631706672 is about 25133.7755221932. The cubic root of 631706672 is about 858.0352986530.

The spelling of 631706672 in words is "six hundred thirty-one million, seven hundred six thousand, six hundred seventy-two".