22312873 has 4 divisors (see below), whose sum is σ = 24341328. Its totient is φ = 20284420.

The previous prime is 22312853. The next prime is 22312883. The reversal of 22312873 is 37821322.

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 a cyclic number.

It is not a de Polignac number, because 22312873 - 2⁹ = 22312361 is a prime.

It is a super-3 number, since 3×22312873³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (22312853) 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, 1014211 + ... + 1014232.

It is an arithmetic number, because the mean of its divisors is an integer number (6085332).

Almost surely, 2^22312873 is an apocalyptic number.

It is an amenable number.

22312873 is a deficient number, since it is larger than the sum of its proper divisors (2028455).

22312873 is a wasteful number, since it uses less digits than its factorization.

22312873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2028454.

The product of its digits is 4032, while the sum is 28.

The square root of 22312873 is about 4723.6503892646. The cubic root of 22312873 is about 281.5259922556.

The spelling of 22312873 in words is "twenty-two million, three hundred twelve thousand, eight hundred seventy-three".