869298731 has 16 divisors (see below), whose sum is σ = 1037996544. Its totient is φ = 711811584.

The previous prime is 869298721. The next prime is 869298733. The reversal of 869298731 is 137892968.

869298731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 869298731 - 2⁶ = 869298667 is a prime.

It is a super-2 number, since 2×869298731² = 1511360567436420722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (869298733) 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, 143051 + ... + 149003.

It is an arithmetic number, because the mean of its divisors is an integer number (64874784).

Almost surely, 2^869298731 is an apocalyptic number.

869298731 is a deficient number, since it is larger than the sum of its proper divisors (168697813).

869298731 is a wasteful number, since it uses less digits than its factorization.

869298731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6890.

The product of its digits is 1306368, while the sum is 53.

The square root of 869298731 is about 29483.8723881379. The cubic root of 869298731 is about 954.3837040460.

The spelling of 869298731 in words is "eight hundred sixty-nine million, two hundred ninety-eight thousand, seven hundred thirty-one".