631988952 has 64 divisors (see below), whose sum is σ = 1811531520. Its totient is φ = 179983488.

The previous prime is 631988939. The next prime is 631988969. The reversal of 631988952 is 259889136.

It is a happy number.

631988952 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 631988895 and 631988904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47323 + ... + 59189.

It is an arithmetic number, because the mean of its divisors is an integer number (28305180).

Almost surely, 2^631988952 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 631988952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (905765760).

631988952 is an abundant number, since it is smaller than the sum of its proper divisors (1179542568).

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

631988952 is a wasteful number, since it uses less digits than its factorization.

631988952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12200 (or 12196 counting only the distinct ones).

The product of its digits is 933120, while the sum is 51.

The square root of 631988952 is about 25139.3904460709. The cubic root of 631988952 is about 858.1630848270.

It can be divided in two parts, 63 and 1988952, that added together give a triangular number (1989015 = T₁₉₉₄).

The spelling of 631988952 in words is "six hundred thirty-one million, nine hundred eighty-eight thousand, nine hundred fifty-two".