8199399 has 8 divisors (see below), whose sum is σ = 11773552. Its totient is φ = 5045760.

The previous prime is 8199391. The next prime is 8199409. The reversal of 8199399 is 9939918.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8199399 - 2³ = 8199391 is a prime.

It is a super-2 number, since 2×8199399² = 134460287922402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8199391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105082 + ... + 105159.

It is an arithmetic number, because the mean of its divisors is an integer number (1471694).

Almost surely, 2^8199399 is an apocalyptic number.

8199399 is a deficient number, since it is larger than the sum of its proper divisors (3574153).

8199399 is a wasteful number, since it uses less digits than its factorization.

8199399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210257.

The product of its digits is 157464, while the sum is 48.

The square root of 8199399 is about 2863.4592715804. The cubic root of 8199399 is about 201.6480408391.

The spelling of 8199399 in words is "eight million, one hundred ninety-nine thousand, three hundred ninety-nine".