22088929 has 2 divisors, whose sum is σ = 22088930. Its totient is φ = 22088928.

The previous prime is 22088917. The next prime is 22088987. The reversal of 22088929 is 92988022.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21669025 + 419904 = 4655^2 + 648^2 .

It is a cyclic number.

It is not a de Polignac number, because 22088929 - 2⁵ = 22088897 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22088891 and 22088900.

It is not a weakly prime, because it can be changed into another prime (22088909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11044464 + 11044465.

It is an arithmetic number, because the mean of its divisors is an integer number (11044465).

Almost surely, 2^22088929 is an apocalyptic number.

It is an amenable number.

22088929 is a deficient number, since it is larger than the sum of its proper divisors (1).

22088929 is an equidigital number, since it uses as much as digits as its factorization.

22088929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 22088929 is about 4699.8860624487. The cubic root of 22088929 is about 280.5809748182.

The spelling of 22088929 in words is "twenty-two million, eighty-eight thousand, nine hundred twenty-nine".