23390903 has 2 divisors, whose sum is σ = 23390904. Its totient is φ = 23390902.

The previous prime is 23390897. The next prime is 23390933. The reversal of 23390903 is 30909332.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23390903 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23390933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11695451 + 11695452.

It is an arithmetic number, because the mean of its divisors is an integer number (11695452).

Almost surely, 2^23390903 is an apocalyptic number.

23390903 is a deficient number, since it is larger than the sum of its proper divisors (1).

23390903 is an equidigital number, since it uses as much as digits as its factorization.

23390903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4374, while the sum is 29.

The square root of 23390903 is about 4836.4142709243. The cubic root of 23390903 is about 285.9887805924.

The spelling of 23390903 in words is "twenty-three million, three hundred ninety thousand, nine hundred three".