2390923 has 2 divisors, whose sum is σ = 2390924. Its totient is φ = 2390922.

The previous prime is 2390917. The next prime is 2390951. The reversal of 2390923 is 3290932.

It is a happy number.

It is an a-pointer prime, because the next prime (2390951) can be obtained adding 2390923 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2390923 - 2⁹ = 2390411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2390891 and 2390900.

It is not a weakly prime, because it can be changed into another prime (2390023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1195461 + 1195462.

It is an arithmetic number, because the mean of its divisors is an integer number (1195462).

2^2390923 is an apocalyptic number.

2390923 is a deficient number, since it is larger than the sum of its proper divisors (1).

2390923 is an equidigital number, since it uses as much as digits as its factorization.

2390923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 2390923 is about 1546.2609740920. The cubic root of 2390923 is about 133.7175866953.

Subtracting 2390923 from its reverse (3290932), we obtain a palindrome (900009).

It can be divided in two parts, 23909 and 23, that added together give a palindrome (23932).

The spelling of 2390923 in words is "two million, three hundred ninety thousand, nine hundred twenty-three".