2398915 has 4 divisors (see below), whose sum is σ = 2878704. Its totient is φ = 1919128.

The previous prime is 2398901. The next prime is 2398919. The reversal of 2398915 is 5198932.

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

It is a cyclic number.

It is not a de Polignac number, because 2398915 - 2¹³ = 2390723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2398919) 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, 239887 + ... + 239896.

It is an arithmetic number, because the mean of its divisors is an integer number (719676).

2^2398915 is an apocalyptic number.

2398915 is a deficient number, since it is larger than the sum of its proper divisors (479789).

2398915 is an equidigital number, since it uses as much as digits as its factorization.

2398915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479788.

The product of its digits is 19440, while the sum is 37.

The square root of 2398915 is about 1548.8431166519. The cubic root of 2398915 is about 133.8664110100.

The spelling of 2398915 in words is "two million, three hundred ninety-eight thousand, nine hundred fifteen".