631004 has 12 divisors (see below), whose sum is σ = 1204728. Its totient is φ = 286800.

The previous prime is 631003. The next prime is 631013. The reversal of 631004 is 400136.

It is a self number, because there is not a number n which added to its sum of digits gives 631004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7127 + ... + 7214.

It is an arithmetic number, because the mean of its divisors is an integer number (100394).

2⁶³¹⁰⁰⁴ is an apocalyptic number.

It is an amenable number.

631004 is a deficient number, since it is larger than the sum of its proper divisors (573724).

631004 is a wasteful number, since it uses less digits than its factorization.

631004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14356 (or 14354 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 631004 is about 794.3576020911. The cubic root of 631004 is about 85.7717038563.

The spelling of 631004 in words is "six hundred thirty-one thousand, four".