9000399 has 4 divisors (see below), whose sum is σ = 12000536. Its totient is φ = 6000264.

The previous prime is 9000379. The next prime is 9000403. The reversal of 9000399 is 9930009.

9000399 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 9000399 - 2⁸ = 9000143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9000349) 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, 1500064 + ... + 1500069.

It is an arithmetic number, because the mean of its divisors is an integer number (3000134).

Almost surely, 2^9000399 is an apocalyptic number.

9000399 is a deficient number, since it is larger than the sum of its proper divisors (3000137).

9000399 is a wasteful number, since it uses less digits than its factorization.

9000399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3000136.

The product of its (nonzero) digits is 2187, while the sum is 30.

The square root of 9000399 is about 3000.0664992630. The cubic root of 9000399 is about 208.0114561614.

The spelling of 9000399 in words is "nine million, three hundred ninety-nine", and thus it is an aban number.