22282891 has 2 divisors, whose sum is σ = 22282892. Its totient is φ = 22282890.

The previous prime is 22282889. The next prime is 22282907. The reversal of 22282891 is 19828222.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22282891 - 2¹ = 22282889 is a prime.

Together with 22282889, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (22282861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11141445 + 11141446.

It is an arithmetic number, because the mean of its divisors is an integer number (11141446).

Almost surely, 2^22282891 is an apocalyptic number.

22282891 is a deficient number, since it is larger than the sum of its proper divisors (1).

22282891 is an equidigital number, since it uses as much as digits as its factorization.

22282891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9216, while the sum is 34.

The square root of 22282891 is about 4720.4757175522. The cubic root of 22282891 is about 281.3998394327.

The spelling of 22282891 in words is "twenty-two million, two hundred eighty-two thousand, eight hundred ninety-one".