2399899 has 4 divisors (see below), whose sum is σ = 2403000. Its totient is φ = 2396800.

The previous prime is 2399897. The next prime is 2399911. The reversal of 2399899 is 9989932.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2399899 - 2¹ = 2399897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2399897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 699 + ... + 2299.

It is an arithmetic number, because the mean of its divisors is an integer number (600750).

2^2399899 is an apocalyptic number.

2399899 is a deficient number, since it is larger than the sum of its proper divisors (3101).

2399899 is a wasteful number, since it uses less digits than its factorization.

2399899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3100.

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

The square root of 2399899 is about 1549.1607405302. The cubic root of 2399899 is about 133.8847118588.

The spelling of 2399899 in words is "two million, three hundred ninety-nine thousand, eight hundred ninety-nine".