22873609 has 4 divisors (see below), whose sum is σ = 24953040. Its totient is φ = 20794180.

The previous prime is 22873607. The next prime is 22873621. The reversal of 22873609 is 90637822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 22873609 - 2¹ = 22873607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22873603) 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, 1039699 + ... + 1039720.

It is an arithmetic number, because the mean of its divisors is an integer number (6238260).

Almost surely, 2^22873609 is an apocalyptic number.

It is an amenable number.

22873609 is a deficient number, since it is larger than the sum of its proper divisors (2079431).

22873609 is a wasteful number, since it uses less digits than its factorization.

22873609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2079430.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 22873609 is about 4782.6361977470. The cubic root of 22873609 is about 283.8648144881.

It can be divided in two parts, 228 and 73609, that added together give a palindrome (73837).

The spelling of 22873609 in words is "twenty-two million, eight hundred seventy-three thousand, six hundred nine".