22663873 has 4 divisors (see below), whose sum is σ = 23997060. Its totient is φ = 21330688.

The previous prime is 22663871. The next prime is 22663891. The reversal of 22663873 is 37836622.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18731584 + 3932289 = 4328^2 + 1983^2 .

It is a cyclic number.

It is not a de Polignac number, because 22663873 - 2¹ = 22663871 is a prime.

It is a super-2 number, since 2×22663873² = 1027302278720258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22663871) 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, 666568 + ... + 666601.

It is an arithmetic number, because the mean of its divisors is an integer number (5999265).

Almost surely, 2^22663873 is an apocalyptic number.

It is an amenable number.

22663873 is a deficient number, since it is larger than the sum of its proper divisors (1333187).

22663873 is a wasteful number, since it uses less digits than its factorization.

22663873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333186.

The product of its digits is 72576, while the sum is 37.

The square root of 22663873 is about 4760.6588829699. The cubic root of 22663873 is about 282.9945309785.

The spelling of 22663873 in words is "twenty-two million, six hundred sixty-three thousand, eight hundred seventy-three".