22632809 has 2 divisors, whose sum is σ = 22632810. Its totient is φ = 22632808.

The previous prime is 22632793. The next prime is 22632817. The reversal of 22632809 is 90823622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21576025 + 1056784 = 4645^2 + 1028^2 .

It is a cyclic number.

It is not a de Polignac number, because 22632809 - 2⁴ = 22632793 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22631809) 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, 11316404 + 11316405.

It is an arithmetic number, because the mean of its divisors is an integer number (11316405).

Almost surely, 2^22632809 is an apocalyptic number.

It is an amenable number.

22632809 is a deficient number, since it is larger than the sum of its proper divisors (1).

22632809 is an equidigital number, since it uses as much as digits as its factorization.

22632809 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 22632809 is about 4757.3951906479. The cubic root of 22632809 is about 282.8651773654.

The spelling of 22632809 in words is "twenty-two million, six hundred thirty-two thousand, eight hundred nine".