22572873 has 6 divisors (see below), whose sum is σ = 32605274. Its totient is φ = 15048576.

The previous prime is 22572863. The next prime is 22572877. The reversal of 22572873 is 37827522.

It is a happy number.

22572873 is a `hidden beast` number, since 2 + 2 + 572 + 87 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 22014864 + 558009 = 4692^2 + 747^2 .

It is not a de Polignac number, because 22572873 - 2⁴ = 22572857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22572877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1254040 + ... + 1254057.

Almost surely, 2^22572873 is an apocalyptic number.

It is an amenable number.

22572873 is a deficient number, since it is larger than the sum of its proper divisors (10032401).

22572873 is a wasteful number, since it uses less digits than its factorization.

22572873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2508103 (or 2508100 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 22572873 is about 4751.0917692674. The cubic root of 22572873 is about 282.6152629607.

The spelling of 22572873 in words is "twenty-two million, five hundred seventy-two thousand, eight hundred seventy-three".