22573939 has 4 divisors (see below), whose sum is σ = 22584160. Its totient is φ = 22563720.

The previous prime is 22573933. The next prime is 22573961. The reversal of 22573939 is 93937522.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 22573939 - 2¹⁵ = 22541171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22573933) 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, 267 + ... + 6724.

It is an arithmetic number, because the mean of its divisors is an integer number (5646040).

Almost surely, 2^22573939 is an apocalyptic number.

22573939 is a deficient number, since it is larger than the sum of its proper divisors (10221).

22573939 is an equidigital number, since it uses as much as digits as its factorization.

22573939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10220.

The product of its digits is 102060, while the sum is 40.

The square root of 22573939 is about 4751.2039526840. The cubic root of 22573939 is about 282.6197117095.

The spelling of 22573939 in words is "twenty-two million, five hundred seventy-three thousand, nine hundred thirty-nine".