631036 has 24 divisors (see below), whose sum is σ = 1304576. Its totient is φ = 261360.

The previous prime is 631013. The next prime is 631039. The reversal of 631036 is 630136.

It is a happy number.

631036 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 (631039) 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, 505 + ... + 1231.

2⁶³¹⁰³⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 631036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (652288).

631036 is an abundant number, since it is smaller than the sum of its proper divisors (673540).

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

631036 is a wasteful number, since it uses less digits than its factorization.

631036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769 (or 767 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 631036 is about 794.3777438977. The cubic root of 631036 is about 85.7731537405.

Subtracting from 631036 its reverse (630136), we obtain a square (900 = 30²).

The spelling of 631036 in words is "six hundred thirty-one thousand, thirty-six".