22656023 has 4 divisors (see below), whose sum is σ = 24398808. Its totient is φ = 20913240.

The previous prime is 22656001. The next prime is 22656031. The reversal of 22656023 is 32065622.

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

It is a cyclic number.

It is not a de Polignac number, because 22656023 - 2⁸ = 22655767 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22655983 and 22656001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22656043) 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 in 3 ways as a sum of consecutive naturals, for example, 871373 + ... + 871398.

It is an arithmetic number, because the mean of its divisors is an integer number (6099702).

Almost surely, 2^22656023 is an apocalyptic number.

22656023 is a deficient number, since it is larger than the sum of its proper divisors (1742785).

22656023 is a wasteful number, since it uses less digits than its factorization.

22656023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1742784.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 22656023 is about 4759.8343458570. The cubic root of 22656023 is about 282.9618539569.

The spelling of 22656023 in words is "twenty-two million, six hundred fifty-six thousand, twenty-three".