2399231 has 2 divisors, whose sum is σ = 2399232. Its totient is φ = 2399230.

The previous prime is 2399213. The next prime is 2399237. The reversal of 2399231 is 1329932.

Together with previous prime (2399213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2399231 - 2⁶ = 2399167 is a prime.

It is a super-3 number, since 3×2399231³ = 41432147812033330173, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is a plaindrome in base 8 and base 16.

It is a junction number, because it is equal to n+sod(n) for n = 2399194 and 2399203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2399237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1199615 + 1199616.

It is an arithmetic number, because the mean of its divisors is an integer number (1199616).

2^2399231 is an apocalyptic number.

2399231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2399231 is an equidigital number, since it uses as much as digits as its factorization.

2399231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2916, while the sum is 29.

The square root of 2399231 is about 1548.9451249157. The cubic root of 2399231 is about 133.8722886572.

The spelling of 2399231 in words is "two million, three hundred ninety-nine thousand, two hundred thirty-one".