22027829 has 2 divisors, whose sum is σ = 22027830. Its totient is φ = 22027828.

The previous prime is 22027799. The next prime is 22027847. The reversal of 22027829 is 92872022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19562929 + 2464900 = 4423^2 + 1570^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22027829 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22027795 and 22027804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22027129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11013914 + 11013915.

It is an arithmetic number, because the mean of its divisors is an integer number (11013915).

Almost surely, 2^22027829 is an apocalyptic number.

It is an amenable number.

22027829 is a deficient number, since it is larger than the sum of its proper divisors (1).

22027829 is an equidigital number, since it uses as much as digits as its factorization.

22027829 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 22027829 is about 4693.3814036364. The cubic root of 22027829 is about 280.3220316960.

The spelling of 22027829 in words is "twenty-two million, twenty-seven thousand, eight hundred twenty-nine".