22724267 has 2 divisors, whose sum is σ = 22724268. Its totient is φ = 22724266.

The previous prime is 22724231. The next prime is 22724311. The reversal of 22724267 is 76242722.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22724267 - 2¹⁶ = 22658731 is a prime.

It is not a weakly prime, because it can be changed into another prime (22724467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11362133 + 11362134.

It is an arithmetic number, because the mean of its divisors is an integer number (11362134).

Almost surely, 2^22724267 is an apocalyptic number.

22724267 is a deficient number, since it is larger than the sum of its proper divisors (1).

22724267 is an equidigital number, since it uses as much as digits as its factorization.

22724267 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18816, while the sum is 32.

The square root of 22724267 is about 4766.9976924685. The cubic root of 22724267 is about 283.2456797678.

Adding to 22724267 its reverse (76242722), we get a palindrome (98966989).

The spelling of 22724267 in words is "twenty-two million, seven hundred twenty-four thousand, two hundred sixty-seven".