22984891 has 2 divisors, whose sum is σ = 22984892. Its totient is φ = 22984890.

The previous prime is 22984883. The next prime is 22984937. The reversal of 22984891 is 19848922.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22984891 - 2³ = 22984883 is a prime.

It is not a weakly prime, because it can be changed into another prime (22984691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11492445 + 11492446.

It is an arithmetic number, because the mean of its divisors is an integer number (11492446).

Almost surely, 2^22984891 is an apocalyptic number.

22984891 is a deficient number, since it is larger than the sum of its proper divisors (1).

22984891 is an equidigital number, since it uses as much as digits as its factorization.

22984891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 43.

The square root of 22984891 is about 4794.2560423907. The cubic root of 22984891 is about 284.3244119006.

The spelling of 22984891 in words is "twenty-two million, nine hundred eighty-four thousand, eight hundred ninety-one".