860906644 has 48 divisors (see below), whose sum is σ = 1766822400. Its totient is φ = 363436416.

The previous prime is 860906633. The next prime is 860906671. The reversal of 860906644 is 446609068.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 860906644.

It is a congruent number.

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, 13629 + ... + 43675.

It is an arithmetic number, because the mean of its divisors is an integer number (36808800).

Almost surely, 2^860906644 is an apocalyptic number.

It is an amenable number.

860906644 is an abundant number, since it is smaller than the sum of its proper divisors (905915756).

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

860906644 is a wasteful number, since it uses less digits than its factorization.

860906644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30112 (or 30110 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 43.

The square root of 860906644 is about 29341.2106771346. The cubic root of 860906644 is about 951.3026060792.

The spelling of 860906644 in words is "eight hundred sixty million, nine hundred six thousand, six hundred forty-four".