631006 has 16 divisors (see below), whose sum is σ = 1020816. Its totient is φ = 291456.

The previous prime is 631003. The next prime is 631013. The reversal of 631006 is 600136.

It is a happy number.

631006 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 2140 + ... + 2416.

It is an arithmetic number, because the mean of its divisors is an integer number (63801).

2⁶³¹⁰⁰⁶ is an apocalyptic number.

631006 is a deficient number, since it is larger than the sum of its proper divisors (389810).

631006 is a wasteful number, since it uses less digits than its factorization.

631006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 631006 is about 794.3588609690. The cubic root of 631006 is about 85.7717944755.

The spelling of 631006 in words is "six hundred thirty-one thousand, six".