22393243 has 2 divisors, whose sum is σ = 22393244. Its totient is φ = 22393242.

The previous prime is 22393213. The next prime is 22393247. The reversal of 22393243 is 34239322.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22393243 is a prime.

It is not a weakly prime, because it can be changed into another prime (22393247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11196621 + 11196622.

It is an arithmetic number, because the mean of its divisors is an integer number (11196622).

Almost surely, 2^22393243 is an apocalyptic number.

22393243 is a deficient number, since it is larger than the sum of its proper divisors (1).

22393243 is an equidigital number, since it uses as much as digits as its factorization.

22393243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 28.

The square root of 22393243 is about 4732.1499342265. The cubic root of 22393243 is about 281.8636020288.

The spelling of 22393243 in words is "twenty-two million, three hundred ninety-three thousand, two hundred forty-three".