631376 has 10 divisors (see below), whose sum is σ = 1223322. Its totient is φ = 315680.

The previous prime is 631361. The next prime is 631387. The reversal of 631376 is 673136.

It can be written as a sum of positive squares in only one way, i.e., 490000 + 141376 = 700^2 + 376^2 .

It is a congruent number.

It is an unprimeable 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 as a sum of consecutive naturals, namely, 19715 + ... + 19746.

2⁶³¹³⁷⁶ is an apocalyptic number.

It is an amenable number.

631376 is a deficient number, since it is larger than the sum of its proper divisors (591946).

631376 is a wasteful number, since it uses less digits than its factorization.

631376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39469 (or 39463 counting only the distinct ones).

The product of its digits is 2268, while the sum is 26.

The square root of 631376 is about 794.5917190608. The cubic root of 631376 is about 85.7885557335.

The spelling of 631376 in words is "six hundred thirty-one thousand, three hundred seventy-six".