22723023 has 4 divisors (see below), whose sum is σ = 30297368. Its totient is φ = 15148680.

The previous prime is 22723021. The next prime is 22723039. The reversal of 22723023 is 32032722.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 22723023 - 2¹ = 22723021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22723021) 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, 3787168 + ... + 3787173.

It is an arithmetic number, because the mean of its divisors is an integer number (7574342).

Almost surely, 2^22723023 is an apocalyptic number.

22723023 is a deficient number, since it is larger than the sum of its proper divisors (7574345).

22723023 is an equidigital number, since it uses as much as digits as its factorization.

22723023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7574344.

The product of its (nonzero) digits is 1008, while the sum is 21.

The square root of 22723023 is about 4766.8672102336. The cubic root of 22723023 is about 283.2405110781.

Adding to 22723023 its reverse (32032722), we get a palindrome (54755745).

The spelling of 22723023 in words is "twenty-two million, seven hundred twenty-three thousand, twenty-three".