868935979 has 8 divisors (see below), whose sum is σ = 877955760. Its totient is φ = 859933056.

The previous prime is 868935971. The next prime is 868936031. The reversal of 868935979 is 979539868.

It is a happy number.

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 868935979 - 2³ = 868935971 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 868935979.

It is not an unprimeable number, because it can be changed into a prime (868935971) 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 7 ways as a sum of consecutive naturals, for example, 117207 + ... + 124399.

It is an arithmetic number, because the mean of its divisors is an integer number (109744470).

Almost surely, 2^868935979 is an apocalyptic number.

868935979 is a deficient number, since it is larger than the sum of its proper divisors (9019781).

868935979 is a wasteful number, since it uses less digits than its factorization.

868935979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8429.

The product of its digits is 29393280, while the sum is 64.

The square root of 868935979 is about 29477.7200441282. The cubic root of 868935979 is about 954.2509331306.

The spelling of 868935979 in words is "eight hundred sixty-eight million, nine hundred thirty-five thousand, nine hundred seventy-nine".