22190893 has 2 divisors, whose sum is σ = 22190894. Its totient is φ = 22190892.

The previous prime is 22190821. The next prime is 22190921. The reversal of 22190893 is 39809122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18852964 + 3337929 = 4342^2 + 1827^2 .

It is a cyclic number.

It is not a de Polignac number, because 22190893 - 2⁹ = 22190381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22190813) 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, 11095446 + 11095447.

It is an arithmetic number, because the mean of its divisors is an integer number (11095447).

Almost surely, 2^22190893 is an apocalyptic number.

It is an amenable number.

22190893 is a deficient number, since it is larger than the sum of its proper divisors (1).

22190893 is an equidigital number, since it uses as much as digits as its factorization.

22190893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 22190893 is about 4710.7210700698. The cubic root of 22190893 is about 281.0120391831.

The spelling of 22190893 in words is "twenty-two million, one hundred ninety thousand, eight hundred ninety-three".