22884749 has 2 divisors, whose sum is σ = 22884750. Its totient is φ = 22884748.

The previous prime is 22884739. The next prime is 22884751. The reversal of 22884749 is 94748822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12040900 + 10843849 = 3470^2 + 3293^2 .

It is a cyclic number.

It is not a de Polignac number, because 22884749 - 2⁴ = 22884733 is a prime.

Together with 22884751, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22884739) 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, 11442374 + 11442375.

It is an arithmetic number, because the mean of its divisors is an integer number (11442375).

Almost surely, 2^22884749 is an apocalyptic number.

It is an amenable number.

22884749 is a deficient number, since it is larger than the sum of its proper divisors (1).

22884749 is an equidigital number, since it uses as much as digits as its factorization.

22884749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 258048, while the sum is 44.

The square root of 22884749 is about 4783.8006856473. The cubic root of 22884749 is about 283.9108900157.

The spelling of 22884749 in words is "twenty-two million, eight hundred eighty-four thousand, seven hundred forty-nine".