631336 has 16 divisors (see below), whose sum is σ = 1206900. Its totient is φ = 309504.

The previous prime is 631307. The next prime is 631339. The reversal of 631336 is 633136.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 630436 + 900 = 794^2 + 30^2 .

It is not an unprimeable number, because it can be changed into a prime (631339) by changing a digit.

631336 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 321 + ... + 1168.

2⁶³¹³³⁶ is an apocalyptic number.

It is an amenable number.

631336 is a deficient number, since it is larger than the sum of its proper divisors (575564).

631336 is a wasteful number, since it uses less digits than its factorization.

631336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548 (or 1544 counting only the distinct ones).

The product of its digits is 972, while the sum is 22.

The square root of 631336 is about 794.5665485030. The cubic root of 631336 is about 85.7867440213.

The spelling of 631336 in words is "six hundred thirty-one thousand, three hundred thirty-six".