22639349 has 2 divisors, whose sum is σ = 22639350. Its totient is φ = 22639348.

The previous prime is 22639333. The next prime is 22639361. The reversal of 22639349 is 94393622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13140625 + 9498724 = 3625^2 + 3082^2 .

It is a cyclic number.

It is not a de Polignac number, because 22639349 - 2⁴ = 22639333 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22639319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11319674 + 11319675.

It is an arithmetic number, because the mean of its divisors is an integer number (11319675).

Almost surely, 2^22639349 is an apocalyptic number.

It is an amenable number.

22639349 is a deficient number, since it is larger than the sum of its proper divisors (1).

22639349 is an equidigital number, since it uses as much as digits as its factorization.

22639349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 38.

The square root of 22639349 is about 4758.0824919289. The cubic root of 22639349 is about 282.8924204134.

The spelling of 22639349 in words is "twenty-two million, six hundred thirty-nine thousand, three hundred forty-nine".