8199904 has 24 divisors (see below), whose sum is σ = 16260048. Its totient is φ = 4070400.

The previous prime is 8199901. The next prime is 8199907. The reversal of 8199904 is 4099918.

It is an interprime number because it is at equal distance from previous prime (8199901) and next prime (8199907).

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8199901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3984 + ... + 5680.

It is an arithmetic number, because the mean of its divisors is an integer number (677502).

Almost surely, 2^8199904 is an apocalyptic number.

It is an amenable number.

8199904 is a deficient number, since it is larger than the sum of its proper divisors (8060144).

8199904 is a wasteful number, since it uses less digits than its factorization.

8199904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1858 (or 1850 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 8199904 is about 2863.5474502791. The cubic root of 8199904 is about 201.6521805803.

The spelling of 8199904 in words is "eight million, one hundred ninety-nine thousand, nine hundred four".