631672 has 16 divisors (see below), whose sum is σ = 1236240. Its totient is φ = 302016.

The previous prime is 631667. The next prime is 631679. The reversal of 631672 is 276136.

631672 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 (631679) 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, 1533 + ... + 1900.

It is an arithmetic number, because the mean of its divisors is an integer number (77265).

2⁶³¹⁶⁷² is an apocalyptic number.

It is an amenable number.

631672 is a deficient number, since it is larger than the sum of its proper divisors (604568).

631672 is a wasteful number, since it uses less digits than its factorization.

631672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3462 (or 3458 counting only the distinct ones).

The product of its digits is 1512, while the sum is 25.

The square root of 631672 is about 794.7779564130. Note that the first 3 decimals coincide. The cubic root of 631672 is about 85.8019600257.

The spelling of 631672 in words is "six hundred thirty-one thousand, six hundred seventy-two".