631704 has 16 divisors (see below), whose sum is σ = 1579320. Its totient is φ = 210560.

The previous prime is 631681. The next prime is 631711. The reversal of 631704 is 407136.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13137 + ... + 13184.

2⁶³¹⁷⁰⁴ is an apocalyptic number.

It is an amenable number.

631704 is an abundant number, since it is smaller than the sum of its proper divisors (947616).

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

631704 is a wasteful number, since it uses less digits than its factorization.

631704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26330 (or 26326 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 631704 is about 794.7980875669. The cubic root of 631704 is about 85.8034088876.

The spelling of 631704 in words is "six hundred thirty-one thousand, seven hundred four".