631726372 has 24 divisors (see below), whose sum is σ = 1193371200. Its totient is φ = 291710496.

The previous prime is 631726369. The next prime is 631726391. The reversal of 631726372 is 273627136.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115722 + ... + 121057.

It is an arithmetic number, because the mean of its divisors is an integer number (49723800).

Almost surely, 2^631726372 is an apocalyptic number.

It is an amenable number.

631726372 is a deficient number, since it is larger than the sum of its proper divisors (561644828).

631726372 is a wasteful number, since it uses less digits than its factorization.

631726372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236835 (or 236833 counting only the distinct ones).

The product of its digits is 63504, while the sum is 37.

The square root of 631726372 is about 25134.1674220572. The cubic root of 631726372 is about 858.0442179402.

The spelling of 631726372 in words is "six hundred thirty-one million, seven hundred twenty-six thousand, three hundred seventy-two".