631952 has 20 divisors (see below), whose sum is σ = 1238016. Its totient is φ = 312480.

The previous prime is 631937. The next prime is 631979. The reversal of 631952 is 259136.

It is a congruent number.

It is an unprimeable number.

631952 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1877 + ... + 2187.

2⁶³¹⁹⁵² is an apocalyptic number.

It is an amenable number.

631952 is a deficient number, since it is larger than the sum of its proper divisors (606064).

631952 is a wasteful number, since it uses less digits than its factorization.

631952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446 (or 440 counting only the distinct ones).

The product of its digits is 1620, while the sum is 26.

The square root of 631952 is about 794.9540867245. The cubic root of 631952 is about 85.8146359081.

Subtracting from 631952 its reverse (259136), we obtain a triangular number (372816 = T₈₆₃).

The spelling of 631952 in words is "six hundred thirty-one thousand, nine hundred fifty-two".