22647241 has 2 divisors, whose sum is σ = 22647242. Its totient is φ = 22647240.

The previous prime is 22647239. The next prime is 22647307. The reversal of 22647241 is 14274622.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20385225 + 2262016 = 4515^2 + 1504^2 .

It is a cyclic number.

It is not a de Polignac number, because 22647241 - 2¹ = 22647239 is a prime.

Together with 22647239, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (22647841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11323620 + 11323621.

It is an arithmetic number, because the mean of its divisors is an integer number (11323621).

Almost surely, 2^22647241 is an apocalyptic number.

It is an amenable number.

22647241 is a deficient number, since it is larger than the sum of its proper divisors (1).

22647241 is an equidigital number, since it uses as much as digits as its factorization.

22647241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5376, while the sum is 28.

The square root of 22647241 is about 4758.9117453468. The cubic root of 22647241 is about 282.9252883727.

The spelling of 22647241 in words is "twenty-two million, six hundred forty-seven thousand, two hundred forty-one".