8199664 has 20 divisors (see below), whose sum is σ = 17331480. Its totient is φ = 3727040.

The previous prime is 8199649. The next prime is 8199673. The reversal of 8199664 is 4669918.

It is a self number, because there is not a number n which added to its sum of digits gives 8199664.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23119 + ... + 23470.

It is an arithmetic number, because the mean of its divisors is an integer number (866574).

Almost surely, 2^8199664 is an apocalyptic number.

It is an amenable number.

8199664 is an abundant number, since it is smaller than the sum of its proper divisors (9131816).

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

8199664 is a wasteful number, since it uses less digits than its factorization.

8199664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46608 (or 46602 counting only the distinct ones).

The product of its digits is 93312, while the sum is 43.

The square root of 8199664 is about 2863.5055439094. The cubic root of 8199664 is about 201.6502131998.

The spelling of 8199664 in words is "eight million, one hundred ninety-nine thousand, six hundred sixty-four".