2398999 has 8 divisors (see below), whose sum is σ = 2477520. Its totient is φ = 2321856.

The previous prime is 2398987. The next prime is 2399011. The reversal of 2398999 is 9998932.

2398999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2398987) and next prime (2399011).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2398999 is a prime.

It is a d-powerful number, because it can be written as 2⁵ + 3¹¹ + 9 + 8⁷ + 9⁴ + 9⁵ + 9⁵ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2398919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4029 + ... + 4585.

It is an arithmetic number, because the mean of its divisors is an integer number (309690).

2^2398999 is an apocalyptic number.

2398999 is a deficient number, since it is larger than the sum of its proper divisors (78521).

2398999 is an equidigital number, since it uses as much as digits as its factorization.

2398999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689.

The product of its digits is 314928, while the sum is 49.

The square root of 2398999 is about 1548.8702334282. The cubic root of 2398999 is about 133.8679734729.

The spelling of 2398999 in words is "two million, three hundred ninety-eight thousand, nine hundred ninety-nine".