869256793 has 4 divisors (see below), whose sum is σ = 870600960. Its totient is φ = 867912628.

The previous prime is 869256781. The next prime is 869256811. The reversal of 869256793 is 397652968.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-869256793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (869253793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 671113 + ... + 672406.

It is an arithmetic number, because the mean of its divisors is an integer number (217650240).

Almost surely, 2^869256793 is an apocalyptic number.

It is an amenable number.

869256793 is a deficient number, since it is larger than the sum of its proper divisors (1344167).

869256793 is a wasteful number, since it uses less digits than its factorization.

869256793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344166.

The product of its digits is 4898880, while the sum is 55.

The square root of 869256793 is about 29483.1611771872. The cubic root of 869256793 is about 954.3683562007.

The spelling of 869256793 in words is "eight hundred sixty-nine million, two hundred fifty-six thousand, seven hundred ninety-three".