22609923 has 24 divisors (see below), whose sum is σ = 36024912. Its totient is φ = 12567744.

The previous prime is 22609919. The next prime is 22609933. The reversal of 22609923 is 32990622.

It is a happy number.

It is not a de Polignac number, because 22609923 - 2² = 22609919 is a prime.

It is a super-2 number, since 2×22609923² = 1022417236131858, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22609903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3361 + ... + 7517.

It is an arithmetic number, because the mean of its divisors is an integer number (1501038).

Almost surely, 2^22609923 is an apocalyptic number.

22609923 is a deficient number, since it is larger than the sum of its proper divisors (13414989).

22609923 is a wasteful number, since it uses less digits than its factorization.

22609923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4211 (or 4204 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 22609923 is about 4754.9892744359. The cubic root of 22609923 is about 282.7698020234.

It can be divided in two parts, 22609 and 923, that added together give a palindrome (23532).

The spelling of 22609923 in words is "twenty-two million, six hundred nine thousand, nine hundred twenty-three".