860621868 has 48 divisors (see below), whose sum is σ = 2238939360. Its totient is φ = 285884352.

The previous prime is 860621819. The next prime is 860621987. The reversal of 860621868 is 868126068.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18046 + ... + 45242.

It is an arithmetic number, because the mean of its divisors is an integer number (46644570).

Almost surely, 2^860621868 is an apocalyptic number.

It is an amenable number.

860621868 is an abundant number, since it is smaller than the sum of its proper divisors (1378317492).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

860621868 is a wasteful number, since it uses less digits than its factorization.

860621868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27503 (or 27495 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 860621868 is about 29336.3574426001. The cubic root of 860621868 is about 951.1977019338.

The spelling of 860621868 in words is "eight hundred sixty million, six hundred twenty-one thousand, eight hundred sixty-eight".