22247933 has 2 divisors, whose sum is σ = 22247934. Its totient is φ = 22247932.

The previous prime is 22247909. The next prime is 22247947. The reversal of 22247933 is 33974222.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22108804 + 139129 = 4702^2 + 373^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22247933 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22247933.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22247963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11123966 + 11123967.

It is an arithmetic number, because the mean of its divisors is an integer number (11123967).

Almost surely, 2^22247933 is an apocalyptic number.

It is an amenable number.

22247933 is a deficient number, since it is larger than the sum of its proper divisors (1).

22247933 is an equidigital number, since it uses as much as digits as its factorization.

22247933 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 32.

The square root of 22247933 is about 4716.7714593777. The cubic root of 22247933 is about 281.2526065273.

The spelling of 22247933 in words is "twenty-two million, two hundred forty-seven thousand, nine hundred thirty-three".