22893709 has 2 divisors, whose sum is σ = 22893710. Its totient is φ = 22893708.

The previous prime is 22893683. The next prime is 22893733. The reversal of 22893709 is 90739822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21883684 + 1010025 = 4678^2 + 1005^2 .

It is a cyclic number.

It is not a de Polignac number, because 22893709 - 2⁵ = 22893677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22890709) 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, 11446854 + 11446855.

It is an arithmetic number, because the mean of its divisors is an integer number (11446855).

Almost surely, 2^22893709 is an apocalyptic number.

It is an amenable number.

22893709 is a deficient number, since it is larger than the sum of its proper divisors (1).

22893709 is an equidigital number, since it uses as much as digits as its factorization.

22893709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 22893709 is about 4784.7370878660. The cubic root of 22893709 is about 283.9479381193.

The spelling of 22893709 in words is "twenty-two million, eight hundred ninety-three thousand, seven hundred nine".