22088641 has 2 divisors, whose sum is σ = 22088642. Its totient is φ = 22088640.

The previous prime is 22088611. The next prime is 22088663. The reversal of 22088641 is 14688022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21818241 + 270400 = 4671^2 + 520^2 .

It is a cyclic number.

It is not a de Polignac number, because 22088641 - 2⁷ = 22088513 is a prime.

It is a super-2 number, since 2×22088641² = 975816122453762, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22088611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11044320 + 11044321.

It is an arithmetic number, because the mean of its divisors is an integer number (11044321).

Almost surely, 2^22088641 is an apocalyptic number.

It is an amenable number.

22088641 is a deficient number, since it is larger than the sum of its proper divisors (1).

22088641 is an equidigital number, since it uses as much as digits as its factorization.

22088641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 22088641 is about 4699.8554233083. The cubic root of 22088641 is about 280.5797553887.

The spelling of 22088641 in words is "twenty-two million, eighty-eight thousand, six hundred forty-one".