82227239 has 2 divisors, whose sum is σ = 82227240. Its totient is φ = 82227238.

The previous prime is 82227217. The next prime is 82227241. The reversal of 82227239 is 93272228.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82227239 is a prime.

It is a super-2 number, since 2×82227239² = 13522637667126242, which contains 22 as substring.

Together with 82227241, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 82227199 and 82227208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82224239) 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, 41113619 + 41113620.

It is an arithmetic number, because the mean of its divisors is an integer number (41113620).

Almost surely, 2^82227239 is an apocalyptic number.

82227239 is a deficient number, since it is larger than the sum of its proper divisors (1).

82227239 is an equidigital number, since it uses as much as digits as its factorization.

82227239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 35.

The square root of 82227239 is about 9067.9236322325. The cubic root of 82227239 is about 434.8490937333.

The spelling of 82227239 in words is "eighty-two million, two hundred twenty-seven thousand, two hundred thirty-nine".