868640683 has 8 divisors (see below), whose sum is σ = 899851680. Its totient is φ = 837513600.

The previous prime is 868640627. The next prime is 868640693. The reversal of 868640683 is 386046868.

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 868640683 - 2²⁵ = 835086251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (868640603) 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, 483 + ... + 41683.

It is an arithmetic number, because the mean of its divisors is an integer number (112481460).

Almost surely, 2^868640683 is an apocalyptic number.

868640683 is a deficient number, since it is larger than the sum of its proper divisors (31210997).

868640683 is a wasteful number, since it uses less digits than its factorization.

868640683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41957.

The product of its (nonzero) digits is 1327104, while the sum is 49.

The square root of 868640683 is about 29472.7108186539. The cubic root of 868640683 is about 954.1428245101.

The spelling of 868640683 in words is "eight hundred sixty-eight million, six hundred forty thousand, six hundred eighty-three".