22800891 has 4 divisors (see below), whose sum is σ = 30401192. Its totient is φ = 15200592.

The previous prime is 22800887. The next prime is 22800907. The reversal of 22800891 is 19800822.

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

It is not a de Polignac number, because 22800891 - 2² = 22800887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22800091) 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, 3800146 + ... + 3800151.

It is an arithmetic number, because the mean of its divisors is an integer number (7600298).

Almost surely, 2^22800891 is an apocalyptic number.

22800891 is a deficient number, since it is larger than the sum of its proper divisors (7600301).

22800891 is an equidigital number, since it uses as much as digits as its factorization.

22800891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7600300.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 22800891 is about 4775.0278533219. The cubic root of 22800891 is about 283.5636814974.

The spelling of 22800891 in words is "twenty-two million, eight hundred thousand, eight hundred ninety-one".