860870890 has 16 divisors (see below), whose sum is σ = 1690437600. Its totient is φ = 313043920.

The previous prime is 860870851. The next prime is 860870909. The reversal of 860870890 is 98078068.

It is a self number, because there is not a number n which added to its sum of digits gives 860870890.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3912940 + ... + 3913159.

It is an arithmetic number, because the mean of its divisors is an integer number (105652350).

Almost surely, 2^860870890 is an apocalyptic number.

860870890 is a deficient number, since it is larger than the sum of its proper divisors (829566710).

860870890 is a wasteful number, since it uses less digits than its factorization.

860870890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7826117.

The product of its (nonzero) digits is 193536, while the sum is 46.

The square root of 860870890 is about 29340.6013912462. The cubic root of 860870890 is about 951.2894364963.

The spelling of 860870890 in words is "eight hundred sixty million, eight hundred seventy thousand, eight hundred ninety".