22023691 has 2 divisors, whose sum is σ = 22023692. Its totient is φ = 22023690.

The previous prime is 22023629. The next prime is 22023713. The reversal of 22023691 is 19632022.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22023691 - 2⁹ = 22023179 is a prime.

It is not a weakly prime, because it can be changed into another prime (22023091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11011845 + 11011846.

It is an arithmetic number, because the mean of its divisors is an integer number (11011846).

Almost surely, 2^22023691 is an apocalyptic number.

22023691 is a deficient number, since it is larger than the sum of its proper divisors (1).

22023691 is an equidigital number, since it uses as much as digits as its factorization.

22023691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 22023691 is about 4692.9405493784. The cubic root of 22023691 is about 280.3044774587.

The spelling of 22023691 in words is "twenty-two million, twenty-three thousand, six hundred ninety-one".