964288809 has 27 divisors (see below), whose sum is σ = 1532625367. Its totient is φ = 583796400.

The previous prime is 964288763. The next prime is 964288811. The reversal of 964288809 is 908882469.

The square root of 964288809 is 31053.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 597949209 + 366339600 = 24453^2 + 19140^2 .

It is not a de Polignac number, because 964288809 - 2⁷ = 964288681 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (964288849) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1024279 + ... + 1025219.

Almost surely, 2^964288809 is an apocalyptic number.

964288809 is a gapful number since it is divisible by the number (99) formed by its first and last digit.

964288809 is the 31053-rd square number.

964288809 is the 15527-th centered octagonal number.

It is an amenable number.

964288809 is a deficient number, since it is larger than the sum of its proper divisors (568336558).

964288809 is an equidigital number, since it uses as much as digits as its factorization.

964288809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1910 (or 955 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The cubic root of 964288809 is about 987.9516908990.

The spelling of 964288809 in words is "nine hundred sixty-four million, two hundred eighty-eight thousand, eight hundred nine".