631346672 has 20 divisors (see below), whose sum is σ = 1334437656. Its totient is φ = 286975680.

The previous prime is 631346641. The next prime is 631346699. The reversal of 631346672 is 276643136.

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, 1793423 + ... + 1793774.

Almost surely, 2^631346672 is an apocalyptic number.

It is an amenable number.

631346672 is an abundant number, since it is smaller than the sum of its proper divisors (703090984).

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

631346672 is a wasteful number, since it uses less digits than its factorization.

631346672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3587216 (or 3587210 counting only the distinct ones).

The product of its digits is 108864, while the sum is 38.

The square root of 631346672 is about 25126.6128238567. The cubic root of 631346672 is about 857.8722739362.

The spelling of 631346672 in words is "six hundred thirty-one million, three hundred forty-six thousand, six hundred seventy-two".