981264 has 20 divisors (see below), whose sum is σ = 2535056. Its totient is φ = 327072.

The previous prime is 981263. The next prime is 981271. The reversal of 981264 is 462189.

981264 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 981264.

It is not an unprimeable number, because it can be changed into a prime (981263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10174 + ... + 10269.

2⁹⁸¹²⁶⁴ is an apocalyptic number.

It is an amenable number.

981264 is an abundant number, since it is smaller than the sum of its proper divisors (1553792).

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

981264 is a wasteful number, since it uses less digits than its factorization.

981264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20454 (or 20448 counting only the distinct ones).

The product of its digits is 3456, while the sum is 30.

The square root of 981264 is about 990.5877043453. The cubic root of 981264 is about 99.3715251346.

The spelling of 981264 in words is "nine hundred eighty-one thousand, two hundred sixty-four".