23023257 has 4 divisors (see below), whose sum is σ = 30697680. Its totient is φ = 15348836.

The previous prime is 23023249. The next prime is 23023267. The reversal of 23023257 is 75232032.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23023257 - 2³ = 23023249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23023237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3837207 + ... + 3837212.

It is an arithmetic number, because the mean of its divisors is an integer number (7674420).

Almost surely, 2^23023257 is an apocalyptic number.

It is an amenable number.

23023257 is a deficient number, since it is larger than the sum of its proper divisors (7674423).

23023257 is an equidigital number, since it uses as much as digits as its factorization.

23023257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7674422.

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 23023257 is about 4798.2556205354. The cubic root of 23023257 is about 284.4825204981.

Adding to 23023257 its reverse (75232032), we get a palindrome (98255289).

The spelling of 23023257 in words is "twenty-three million, twenty-three thousand, two hundred fifty-seven".