859097664 has 70 divisors (see below), whose sum is σ = 2546649974. Its totient is φ = 286364160.

The previous prime is 859097663. The next prime is 859097677. The reversal of 859097664 is 466790958.

It can be written as a sum of positive squares in only one way, i.e., 784448064 + 74649600 = 28008^2 + 8640^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 859097664.

It is not an unprimeable number, because it can be changed into a prime (859097663) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 77677 + ... + 88044.

Almost surely, 2^859097664 is an apocalyptic number.

It is an amenable number.

859097664 is an abundant number, since it is smaller than the sum of its proper divisors (1687552310).

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

859097664 is a wasteful number, since it uses less digits than its factorization.

859097664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165745 (or 165726 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The square root of 859097664 is about 29310.3678584899. The cubic root of 859097664 is about 950.6358306715.

The spelling of 859097664 in words is "eight hundred fifty-nine million, ninety-seven thousand, six hundred sixty-four".