879617859 has 12 divisors (see below), whose sum is σ = 1242112536. Its totient is φ = 551784192.

The previous prime is 879617833. The next prime is 879617861. The reversal of 879617859 is 958716978.

It is not a de Polignac number, because 879617859 - 2⁸ = 879617603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (879617059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 209727 + ... + 213879.

It is an arithmetic number, because the mean of its divisors is an integer number (103509378).

Almost surely, 2^879617859 is an apocalyptic number.

879617859 is a deficient number, since it is larger than the sum of its proper divisors (362494677).

879617859 is an frugal number, since it uses more digits than its factorization.

879617859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8326 (or 4173 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 60.

The square root of 879617859 is about 29658.3522637385. The cubic root of 879617859 is about 958.1452393613.

The spelling of 879617859 in words is "eight hundred seventy-nine million, six hundred seventeen thousand, eight hundred fifty-nine".