264975289 has 4 divisors (see below), whose sum is σ = 266112756. Its totient is φ = 263837824.

The previous prime is 264975281. The next prime is 264975299. The reversal of 264975289 is 982579462.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 46172025 + 218803264 = 6795^2 + 14792^2 .

It is a cyclic number.

It is not a de Polignac number, because 264975289 - 2³ = 264975281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264975281) 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, 568384 + ... + 568849.

It is an arithmetic number, because the mean of its divisors is an integer number (66528189).

Almost surely, 2^264975289 is an apocalyptic number.

It is an amenable number.

264975289 is a deficient number, since it is larger than the sum of its proper divisors (1137467).

264975289 is a wasteful number, since it uses less digits than its factorization.

264975289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137466.

The product of its digits is 2177280, while the sum is 52.

The square root of 264975289 is about 16278.0615860734. The cubic root of 264975289 is about 642.2958631206.

The spelling of 264975289 in words is "two hundred sixty-four million, nine hundred seventy-five thousand, two hundred eighty-nine".