869552431 has 16 divisors (see below), whose sum is σ = 1006082208. Its totient is φ = 742758400.

The previous prime is 869552401. The next prime is 869552459. The reversal of 869552431 is 134255968.

It is a cyclic number.

It is not a de Polignac number, because 869552431 - 2⁷ = 869552303 is a prime.

It is a super-2 number, since 2×869552431² = 1512242860516019522, 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 (869552401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118551 + ... + 125671.

It is an arithmetic number, because the mean of its divisors is an integer number (62880138).

Almost surely, 2^869552431 is an apocalyptic number.

869552431 is a deficient number, since it is larger than the sum of its proper divisors (136529777).

869552431 is a wasteful number, since it uses less digits than its factorization.

869552431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7802.

The product of its digits is 259200, while the sum is 43.

The square root of 869552431 is about 29488.1744263696. The cubic root of 869552431 is about 954.4765388742.

The spelling of 869552431 in words is "eight hundred sixty-nine million, five hundred fifty-two thousand, four hundred thirty-one".