869116281 has 16 divisors (see below), whose sum is σ = 1266831360. Its totient is φ = 525627920.

The previous prime is 869116267. The next prime is 869116307. The reversal of 869116281 is 182611968.

It is a cyclic number.

It is not a de Polignac number, because 869116281 - 2¹⁰ = 869115257 is a prime.

It is a super-2 number, since 2×869116281² = 1510726219798541922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (869116201) 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, 11685 + ... + 43298.

It is an arithmetic number, because the mean of its divisors is an integer number (79176960).

Almost surely, 2^869116281 is an apocalyptic number.

It is an amenable number.

869116281 is a deficient number, since it is larger than the sum of its proper divisors (397715079).

869116281 is a wasteful number, since it uses less digits than its factorization.

869116281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55476.

The product of its digits is 41472, while the sum is 42.

The square root of 869116281 is about 29480.7781613715. The cubic root of 869116281 is about 954.3169301113.

The spelling of 869116281 in words is "eight hundred sixty-nine million, one hundred sixteen thousand, two hundred eighty-one".