631464 has 32 divisors (see below), whose sum is σ = 1602720. Its totient is φ = 207296.

The previous prime is 631459. The next prime is 631469. The reversal of 631464 is 464136.

It is an interprime number because it is at equal distance from previous prime (631459) and next prime (631469).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 631464.

It is not an unprimeable number, because it can be changed into a prime (631469) 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, 1834 + ... + 2150.

It is an arithmetic number, because the mean of its divisors is an integer number (50085).

2⁶³¹⁴⁶⁴ is an apocalyptic number.

It is an amenable number.

631464 is an abundant number, since it is smaller than the sum of its proper divisors (971256).

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

631464 is a wasteful number, since it uses less digits than its factorization.

631464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409 (or 405 counting only the distinct ones).

The product of its digits is 1728, while the sum is 24.

The square root of 631464 is about 794.6470914815. The cubic root of 631464 is about 85.7925412309.

The spelling of 631464 in words is "six hundred thirty-one thousand, four hundred sixty-four".