22738623 has 4 divisors (see below), whose sum is σ = 30318168. Its totient is φ = 15159080.

The previous prime is 22738613. The next prime is 22738627. The reversal of 22738623 is 32683722.

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 22738623 - 2⁴ = 22738607 is a prime.

It is a super-2 number, since 2×22738623² = 1034089951872258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22738627) 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, 3789768 + ... + 3789773.

It is an arithmetic number, because the mean of its divisors is an integer number (7579542).

Almost surely, 2^22738623 is an apocalyptic number.

22738623 is a deficient number, since it is larger than the sum of its proper divisors (7579545).

22738623 is an equidigital number, since it uses as much as digits as its factorization.

22738623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7579544.

The product of its digits is 24192, while the sum is 33.

The square root of 22738623 is about 4768.5032242833. The cubic root of 22738623 is about 283.3053137997.

The spelling of 22738623 in words is "twenty-two million, seven hundred thirty-eight thousand, six hundred twenty-three".