22049887 has 2 divisors, whose sum is σ = 22049888. Its totient is φ = 22049886.

The previous prime is 22049873. The next prime is 22049903. The reversal of 22049887 is 78894022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22049887 - 2²³ = 13661279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22049837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11024943 + 11024944.

It is an arithmetic number, because the mean of its divisors is an integer number (11024944).

Almost surely, 2^22049887 is an apocalyptic number.

22049887 is a deficient number, since it is larger than the sum of its proper divisors (1).

22049887 is an equidigital number, since it uses as much as digits as its factorization.

22049887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 22049887 is about 4695.7307205588. The cubic root of 22049887 is about 280.4155691418.

The spelling of 22049887 in words is "twenty-two million, forty-nine thousand, eight hundred eighty-seven".