22956861 has 4 divisors (see below), whose sum is σ = 30609152. Its totient is φ = 15304572.

The previous prime is 22956811. The next prime is 22956881. The reversal of 22956861 is 16865922.

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 22956861 - 2⁷ = 22956733 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 (22956811) 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, 3826141 + ... + 3826146.

It is an arithmetic number, because the mean of its divisors is an integer number (7652288).

Almost surely, 2^22956861 is an apocalyptic number.

It is an amenable number.

22956861 is a deficient number, since it is larger than the sum of its proper divisors (7652291).

22956861 is an equidigital number, since it uses as much as digits as its factorization.

22956861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7652290.

The product of its digits is 51840, while the sum is 39.

The square root of 22956861 is about 4791.3318607669. The cubic root of 22956861 is about 284.2087873206.

The spelling of 22956861 in words is "twenty-two million, nine hundred fifty-six thousand, eight hundred sixty-one".