22702247 has 2 divisors, whose sum is σ = 22702248. Its totient is φ = 22702246.

The previous prime is 22702231. The next prime is 22702289. The reversal of 22702247 is 74220722.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22702247 - 2⁴ = 22702231 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22704247) 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, 11351123 + 11351124.

It is an arithmetic number, because the mean of its divisors is an integer number (11351124).

Almost surely, 2^22702247 is an apocalyptic number.

22702247 is a deficient number, since it is larger than the sum of its proper divisors (1).

22702247 is an equidigital number, since it uses as much as digits as its factorization.

22702247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3136, while the sum is 26.

The square root of 22702247 is about 4764.6875028694. The cubic root of 22702247 is about 283.1541610763.

Adding to 22702247 its reverse (74220722), we get a palindrome (96922969).

The spelling of 22702247 in words is "twenty-two million, seven hundred two thousand, two hundred forty-seven".