22722871 has 4 divisors (see below), whose sum is σ = 22760200. Its totient is φ = 22685544.

The previous prime is 22722851. The next prime is 22722883. The reversal of 22722871 is 17822722.

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

It is a cyclic number.

It is not a de Polignac number, because 22722871 - 2⁵ = 22722839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22722811) 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, 17736 + ... + 18973.

It is an arithmetic number, because the mean of its divisors is an integer number (5690050).

Almost surely, 2^22722871 is an apocalyptic number.

22722871 is a deficient number, since it is larger than the sum of its proper divisors (37329).

22722871 is an equidigital number, since it uses as much as digits as its factorization.

22722871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37328.

The product of its digits is 6272, while the sum is 31.

The square root of 22722871 is about 4766.8512668217. The cubic root of 22722871 is about 283.2398795210.

The spelling of 22722871 in words is "twenty-two million, seven hundred twenty-two thousand, eight hundred seventy-one".