22639073 has 2 divisors, whose sum is σ = 22639074. Its totient is φ = 22639072.

The previous prime is 22639063. The next prime is 22639081. The reversal of 22639073 is 37093622.

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., 15816529 + 6822544 = 3977^2 + 2612^2 .

It is a cyclic number.

It is not a de Polignac number, because 22639073 - 2¹⁸ = 22376929 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is equal to p_1426919 and since 22639073 and 1426919 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (22639033) 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, 11319536 + 11319537.

It is an arithmetic number, because the mean of its divisors is an integer number (11319537).

Almost surely, 2^22639073 is an apocalyptic number.

It is an amenable number.

22639073 is a deficient number, since it is larger than the sum of its proper divisors (1).

22639073 is an equidigital number, since it uses as much as digits as its factorization.

22639073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 22639073 is about 4758.0534885602. The cubic root of 22639073 is about 282.8912708128.

The spelling of 22639073 in words is "twenty-two million, six hundred thirty-nine thousand, seventy-three".