23455493 has 2 divisors, whose sum is σ = 23455494. Its totient is φ = 23455492.

The previous prime is 23455463. The next prime is 23455501. The reversal of 23455493 is 39455432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23203489 + 252004 = 4817^2 + 502^2 .

It is a cyclic number.

It is not a de Polignac number, because 23455493 - 2⁶ = 23455429 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23455463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11727746 + 11727747.

It is an arithmetic number, because the mean of its divisors is an integer number (11727747).

Almost surely, 2^23455493 is an apocalyptic number.

It is an amenable number.

23455493 is a deficient number, since it is larger than the sum of its proper divisors (1).

23455493 is an equidigital number, since it uses as much as digits as its factorization.

23455493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64800, while the sum is 35.

The square root of 23455493 is about 4843.0871352888. The cubic root of 23455493 is about 286.2517751268.

The spelling of 23455493 in words is "twenty-three million, four hundred fifty-five thousand, four hundred ninety-three".