869680789 has 8 divisors (see below), whose sum is σ = 898672640. Its totient is φ = 840747600.

The previous prime is 869680753. The next prime is 869680841. The reversal of 869680789 is 987086968.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 869680789 - 2⁹ = 869680277 is a prime.

It is a super-3 number, since 3×869680789³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869180789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16567 + ... + 44875.

It is an arithmetic number, because the mean of its divisors is an integer number (112334080).

Almost surely, 2^869680789 is an apocalyptic number.

It is an amenable number.

869680789 is a deficient number, since it is larger than the sum of its proper divisors (28991851).

869680789 is a wasteful number, since it uses less digits than its factorization.

869680789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29331.

The product of its (nonzero) digits is 10450944, while the sum is 61.

The square root of 869680789 is about 29490.3507778392. The cubic root of 869680789 is about 954.5235012223.

The spelling of 869680789 in words is "eight hundred sixty-nine million, six hundred eighty thousand, seven hundred eighty-nine".