631964 has 6 divisors (see below), whose sum is σ = 1105944. Its totient is φ = 315980.

The previous prime is 631937. The next prime is 631979. The reversal of 631964 is 469136.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78992 + ... + 78999.

It is an arithmetic number, because the mean of its divisors is an integer number (184324).

2⁶³¹⁹⁶⁴ is an apocalyptic number.

It is an amenable number.

631964 is a deficient number, since it is larger than the sum of its proper divisors (473980).

631964 is a wasteful number, since it uses less digits than its factorization.

631964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157995 (or 157993 counting only the distinct ones).

The product of its digits is 3888, while the sum is 29.

The square root of 631964 is about 794.9616342944. The cubic root of 631964 is about 85.8151790765.

The spelling of 631964 in words is "six hundred thirty-one thousand, nine hundred sixty-four".