2390023 has 2 divisors, whose sum is σ = 2390024. Its totient is φ = 2390022.

The previous prime is 2390021. The next prime is 2390033. The reversal of 2390023 is 3200932.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2390023 - 2¹ = 2390021 is a prime.

Together with 2390021, it forms a pair of twin primes.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2390021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1195011 + 1195012.

It is an arithmetic number, because the mean of its divisors is an integer number (1195012).

2^2390023 is an apocalyptic number.

2390023 is a deficient number, since it is larger than the sum of its proper divisors (1).

2390023 is an equidigital number, since it uses as much as digits as its factorization.

2390023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 2390023 is about 1545.9699220877. The cubic root of 2390023 is about 133.7008064349.

Adding to 2390023 its reverse (3200932), we get a palindrome (5590955).

The spelling of 2390023 in words is "two million, three hundred ninety thousand, twenty-three".