22093187 has 4 divisors (see below), whose sum is σ = 22102776. Its totient is φ = 22083600.

The previous prime is 22093171. The next prime is 22093207. The reversal of 22093187 is 78139022.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 22093187 - 2⁴ = 22093171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22093147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 983 + ... + 6719.

It is an arithmetic number, because the mean of its divisors is an integer number (5525694).

Almost surely, 2^22093187 is an apocalyptic number.

22093187 is a deficient number, since it is larger than the sum of its proper divisors (9589).

22093187 is an equidigital number, since it uses as much as digits as its factorization.

22093187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9588.

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

The square root of 22093187 is about 4700.3390303254. The cubic root of 22093187 is about 280.5990025073.

The spelling of 22093187 in words is "twenty-two million, ninety-three thousand, one hundred eighty-seven".