22089623 has 2 divisors, whose sum is σ = 22089624. Its totient is φ = 22089622.

The previous prime is 22089583. The next prime is 22089631. The reversal of 22089623 is 32698022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22089623 - 2¹² = 22085527 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22089623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22089643) 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, 11044811 + 11044812.

It is an arithmetic number, because the mean of its divisors is an integer number (11044812).

Almost surely, 2^22089623 is an apocalyptic number.

22089623 is a deficient number, since it is larger than the sum of its proper divisors (1).

22089623 is an equidigital number, since it uses as much as digits as its factorization.

22089623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 22089623 is about 4699.9598934459. The cubic root of 22089623 is about 280.5839132609.

The spelling of 22089623 in words is "twenty-two million, eighty-nine thousand, six hundred twenty-three".