22852309 has 2 divisors, whose sum is σ = 22852310. Its totient is φ = 22852308.

The previous prime is 22852303. The next prime is 22852321. The reversal of 22852309 is 90325822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22297284 + 555025 = 4722^2 + 745^2 .

It is a cyclic number.

It is not a de Polignac number, because 22852309 - 2²¹ = 20755157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22852303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11426154 + 11426155.

It is an arithmetic number, because the mean of its divisors is an integer number (11426155).

Almost surely, 2^22852309 is an apocalyptic number.

It is an amenable number.

22852309 is a deficient number, since it is larger than the sum of its proper divisors (1).

22852309 is an equidigital number, since it uses as much as digits as its factorization.

22852309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 22852309 is about 4780.4088737262. The cubic root of 22852309 is about 283.7766750912.

The spelling of 22852309 in words is "twenty-two million, eight hundred fifty-two thousand, three hundred nine".