632864 has 12 divisors (see below), whose sum is σ = 1246014. Its totient is φ = 316416.

The previous prime is 632857. The next prime is 632881. The reversal of 632864 is 468236.

It can be written as a sum of positive squares in only one way, i.e., 547600 + 85264 = 740^2 + 292^2 .

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, 9857 + ... + 9920.

2⁶³²⁸⁶⁴ is an apocalyptic number.

It is an amenable number.

632864 is a deficient number, since it is larger than the sum of its proper divisors (613150).

632864 is a wasteful number, since it uses less digits than its factorization.

632864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19787 (or 19779 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

The square root of 632864 is about 795.5274979534. The cubic root of 632864 is about 85.8558971272.

The spelling of 632864 in words is "six hundred thirty-two thousand, eight hundred sixty-four".