22087193 has 2 divisors, whose sum is σ = 22087194. Its totient is φ = 22087192.

The previous prime is 22087157. The next prime is 22087207. The reversal of 22087193 is 39178022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15264649 + 6822544 = 3907^2 + 2612^2 .

It is a cyclic number.

It is not a de Polignac number, because 22087193 - 2⁶ = 22087129 is a prime.

It is not a weakly prime, because it can be changed into another prime (22087103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11043596 + 11043597.

It is an arithmetic number, because the mean of its divisors is an integer number (11043597).

Almost surely, 2^22087193 is an apocalyptic number.

It is an amenable number.

22087193 is a deficient number, since it is larger than the sum of its proper divisors (1).

22087193 is an equidigital number, since it uses as much as digits as its factorization.

22087193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 22087193 is about 4699.7013734917. The cubic root of 22087193 is about 280.5736242078.

The spelling of 22087193 in words is "twenty-two million, eighty-seven thousand, one hundred ninety-three".