8631264 has 24 divisors (see below), whose sum is σ = 22657320. Its totient is φ = 2877056.

The previous prime is 8631251. The next prime is 8631269. The reversal of 8631264 is 4621368.

It is a tau number, because it is divible by the number of its divisors (24).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8631269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44859 + ... + 45050.

It is an arithmetic number, because the mean of its divisors is an integer number (944055).

Almost surely, 2^8631264 is an apocalyptic number.

It is an amenable number.

8631264 is an abundant number, since it is smaller than the sum of its proper divisors (14026056).

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

8631264 is a wasteful number, since it uses less digits than its factorization.

8631264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89922 (or 89914 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 8631264 is about 2937.9012917387. The cubic root of 8631264 is about 205.1279312518.

The spelling of 8631264 in words is "eight million, six hundred thirty-one thousand, two hundred sixty-four".