22673381 has 2 divisors, whose sum is σ = 22673382. Its totient is φ = 22673380.

The previous prime is 22673333. The next prime is 22673383. The reversal of 22673381 is 18337622.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12013156 + 10660225 = 3466^2 + 3265^2 .

It is a cyclic number.

It is not a de Polignac number, because 22673381 - 2¹⁸ = 22411237 is a prime.

It is a super-2 number, since 2×22673381² = 1028164411942322, which contains 22 as substring.

Together with 22673383, 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 (22673383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11336690 + 11336691.

It is an arithmetic number, because the mean of its divisors is an integer number (11336691).

Almost surely, 2^22673381 is an apocalyptic number.

It is an amenable number.

22673381 is a deficient number, since it is larger than the sum of its proper divisors (1).

22673381 is an equidigital number, since it uses as much as digits as its factorization.

22673381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 32.

The square root of 22673381 is about 4761.6573795266. The cubic root of 22673381 is about 283.0340996173.

The spelling of 22673381 in words is "twenty-two million, six hundred seventy-three thousand, three hundred eighty-one".