22809601 has 2 divisors, whose sum is σ = 22809602. Its totient is φ = 22809600.

The previous prime is 22809587. The next prime is 22809623. The reversal of 22809601 is 10690822.

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., 22420225 + 389376 = 4735^2 + 624^2 .

It is a cyclic number.

It is not a de Polignac number, because 22809601 - 2⁹ = 22809089 is a prime.

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 22809601.

It is not a weakly prime, because it can be changed into another prime (22809001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11404800 + 11404801.

It is an arithmetic number, because the mean of its divisors is an integer number (11404801).

Almost surely, 2^22809601 is an apocalyptic number.

It is an amenable number.

22809601 is a deficient number, since it is larger than the sum of its proper divisors (1).

22809601 is an equidigital number, since it uses as much as digits as its factorization.

22809601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 22809601 is about 4775.9398028032. The cubic root of 22809601 is about 283.5997842567.

It can be divided in two parts, 2280 and 9601, that added together give a square (11881 = 109²).

The spelling of 22809601 in words is "twenty-two million, eight hundred nine thousand, six hundred one".