8399136 has 24 divisors (see below), whose sum is σ = 22047984. Its totient is φ = 2799680.

The previous prime is 8399129. The next prime is 8399141. The reversal of 8399136 is 6319938.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 8399094 and 8399103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43650 + ... + 43841.

It is an arithmetic number, because the mean of its divisors is an integer number (918666).

Almost surely, 2^8399136 is an apocalyptic number.

It is an amenable number.

8399136 is an abundant number, since it is smaller than the sum of its proper divisors (13648848).

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

8399136 is a wasteful number, since it uses less digits than its factorization.

8399136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87504 (or 87496 counting only the distinct ones).

The product of its digits is 34992, while the sum is 39.

The square root of 8399136 is about 2898.1262912441. The cubic root of 8399136 is about 203.2723015490.

The spelling of 8399136 in words is "eight million, three hundred ninety-nine thousand, one hundred thirty-six".