868022879 has 4 divisors (see below), whose sum is σ = 868372176. Its totient is φ = 867673584.

The previous prime is 868022843. The next prime is 868022933. The reversal of 868022879 is 978220868.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 868022879 - 2²⁸ = 599587423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868022819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170894 + ... + 175899.

It is an arithmetic number, because the mean of its divisors is an integer number (217093044).

Almost surely, 2^868022879 is an apocalyptic number.

868022879 is a deficient number, since it is larger than the sum of its proper divisors (349297).

868022879 is a wasteful number, since it uses less digits than its factorization.

868022879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349296.

The product of its (nonzero) digits is 774144, while the sum is 50.

The square root of 868022879 is about 29462.2280046842. The cubic root of 868022879 is about 953.9165656090.

The spelling of 868022879 in words is "eight hundred sixty-eight million, twenty-two thousand, eight hundred seventy-nine".