2398931 has 2 divisors, whose sum is σ = 2398932. Its totient is φ = 2398930.

The previous prime is 2398919. The next prime is 2398961. The reversal of 2398931 is 1398932.

2398931 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2398931 - 2⁶ = 2398867 is a prime.

It is a super-2 number, since 2×2398931² = 11509739885522, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2398891 and 2398900.

It is not a weakly prime, because it can be changed into another prime (2398901) 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 as a sum of consecutive naturals, namely, 1199465 + 1199466.

It is an arithmetic number, because the mean of its divisors is an integer number (1199466).

2^2398931 is an apocalyptic number.

2398931 is a deficient number, since it is larger than the sum of its proper divisors (1).

2398931 is an equidigital number, since it uses as much as digits as its factorization.

2398931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 35.

The square root of 2398931 is about 1548.8482817888. The cubic root of 2398931 is about 133.8667086248.

Subtracting from 2398931 its reverse (1398932), we obtain a palindrome (999999).

The spelling of 2398931 in words is "two million, three hundred ninety-eight thousand, nine hundred thirty-one".