868578790 has 32 divisors (see below), whose sum is σ = 1671832224. Its totient is φ = 323750400.

The previous prime is 868578761. The next prime is 868578791. The reversal of 868578790 is 97875868.

It is a super-2 number, since 2×868578790² = 1508858228875728200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868578791) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8124 + ... + 42463.

It is an arithmetic number, because the mean of its divisors is an integer number (52244757).

Almost surely, 2^868578790 is an apocalyptic number.

868578790 is a deficient number, since it is larger than the sum of its proper divisors (803253434).

868578790 is a wasteful number, since it uses less digits than its factorization.

868578790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50712.

The product of its (nonzero) digits is 6773760, while the sum is 58.

The square root of 868578790 is about 29471.6607947364. The cubic root of 868578790 is about 954.1201622189.

The spelling of 868578790 in words is "eight hundred sixty-eight million, five hundred seventy-eight thousand, seven hundred ninety".