869575231 has 4 divisors (see below), whose sum is σ = 993800272. Its totient is φ = 745350192.

The previous prime is 869575229. The next prime is 869575241. The reversal of 869575231 is 132575968.

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

It is a cyclic number.

It is not a de Polignac number, because 869575231 - 2¹ = 869575229 is a prime.

It is a super-2 number, since 2×869575231² = 1512322164737406722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869575241) 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, 62112510 + ... + 62112523.

It is an arithmetic number, because the mean of its divisors is an integer number (248450068).

Almost surely, 2^869575231 is an apocalyptic number.

869575231 is a deficient number, since it is larger than the sum of its proper divisors (124225041).

869575231 is a wasteful number, since it uses less digits than its factorization.

869575231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124225040.

The product of its digits is 453600, while the sum is 46.

The square root of 869575231 is about 29488.5610194869. The cubic root of 869575231 is about 954.4848810489.

The spelling of 869575231 in words is "eight hundred sixty-nine million, five hundred seventy-five thousand, two hundred thirty-one".