22606091 has 2 divisors, whose sum is σ = 22606092. Its totient is φ = 22606090.

The previous prime is 22606081. The next prime is 22606093. The reversal of 22606091 is 19060622.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22606091 is a prime.

It is a super-2 number, since 2×22606091² = 1022070700600562, which contains 22 as substring.

Together with 22606093, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22606091.

It is not a weakly prime, because it can be changed into another prime (22606093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11303045 + 11303046.

It is an arithmetic number, because the mean of its divisors is an integer number (11303046).

Almost surely, 2^22606091 is an apocalyptic number.

22606091 is a deficient number, since it is larger than the sum of its proper divisors (1).

22606091 is an equidigital number, since it uses as much as digits as its factorization.

22606091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 22606091 is about 4754.5863121832. The cubic root of 22606091 is about 282.7538262192.

The spelling of 22606091 in words is "twenty-two million, six hundred six thousand, ninety-one".