8195664 has 40 divisors (see below), whose sum is σ = 21373632. Its totient is φ = 2705920.

The previous prime is 8195657. The next prime is 8195689. The reversal of 8195664 is 4665918.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4669 + ... + 6179.

Almost surely, 2^8195664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8195664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10686816).

8195664 is an abundant number, since it is smaller than the sum of its proper divisors (13177968).

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

8195664 is a wasteful number, since it uses less digits than its factorization.

8195664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1635 (or 1629 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

The square root of 8195664 is about 2862.8070141035. The cubic root of 8195664 is about 201.6174178702.

The spelling of 8195664 in words is "eight million, one hundred ninety-five thousand, six hundred sixty-four".