631896 has 32 divisors (see below), whose sum is σ = 1600560. Its totient is φ = 207872.

The previous prime is 631889. The next prime is 631901. The reversal of 631896 is 698136.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2596 + ... + 2828.

2⁶³¹⁸⁹⁶ is an apocalyptic number.

It is an amenable number.

631896 is an abundant number, since it is smaller than the sum of its proper divisors (968664).

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

631896 is a wasteful number, since it uses less digits than its factorization.

631896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355 (or 351 counting only the distinct ones).

The product of its digits is 7776, while the sum is 33.

The square root of 631896 is about 794.9188637842. The cubic root of 631896 is about 85.8121010312.

The spelling of 631896 in words is "six hundred thirty-one thousand, eight hundred ninety-six".