631364 has 6 divisors (see below), whose sum is σ = 1104894. Its totient is φ = 315680.

The previous prime is 631361. The next prime is 631387. The reversal of 631364 is 463136.

It can be written as a sum of positive squares in only one way, i.e., 350464 + 280900 = 592^2 + 530^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 631364.

It is not an unprimeable number, because it can be changed into a prime (631361) by changing a digit.

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, 78917 + ... + 78924.

It is an arithmetic number, because the mean of its divisors is an integer number (184149).

2⁶³¹³⁶⁴ is an apocalyptic number.

It is an amenable number.

631364 is a deficient number, since it is larger than the sum of its proper divisors (473530).

631364 is a wasteful number, since it uses less digits than its factorization.

631364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157845 (or 157843 counting only the distinct ones).

The product of its digits is 1296, while the sum is 23.

The square root of 631364 is about 794.5841679772. The cubic root of 631364 is about 85.7880122279.

The spelling of 631364 in words is "six hundred thirty-one thousand, three hundred sixty-four".