859793664 has 36 divisors (see below), whose sum is σ = 2288307056. Its totient is φ = 286597632.

The previous prime is 859793663. The next prime is 859793687. The reversal of 859793664 is 466397958.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (859793663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 558994 + ... + 560529.

Almost surely, 2^859793664 is an apocalyptic number.

It is an amenable number.

859793664 is an abundant number, since it is smaller than the sum of its proper divisors (1428513392).

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

859793664 is a wasteful number, since it uses less digits than its factorization.

859793664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119542 (or 1119528 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 57.

The square root of 859793664 is about 29322.2383865898. The cubic root of 859793664 is about 950.8924813292.

The spelling of 859793664 in words is "eight hundred fifty-nine million, seven hundred ninety-three thousand, six hundred sixty-four".