22647023 has 4 divisors (see below), whose sum is σ = 25882320. Its totient is φ = 19411728.

The previous prime is 22647017. The next prime is 22647049. The reversal of 22647023 is 32074622.

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

It is not a de Polignac number, because 22647023 - 2¹⁴ = 22630639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22646983 and 22647001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22647013) 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, 1617638 + ... + 1617651.

It is an arithmetic number, because the mean of its divisors is an integer number (6470580).

Almost surely, 2^22647023 is an apocalyptic number.

22647023 is a deficient number, since it is larger than the sum of its proper divisors (3235297).

22647023 is an equidigital number, since it uses as much as digits as its factorization.

22647023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3235296.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 22647023 is about 4758.8888408955. Note that the first 4 decimals coincide. The cubic root of 22647023 is about 282.9243805666.

The spelling of 22647023 in words is "twenty-two million, six hundred forty-seven thousand, twenty-three".