82822309 has 2 divisors, whose sum is σ = 82822310. Its totient is φ = 82822308.

The previous prime is 82822303. The next prime is 82822321. The reversal of 82822309 is 90322828.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75516100 + 7306209 = 8690^2 + 2703^2 .

It is a cyclic number.

It is not a de Polignac number, because 82822309 - 2⁵ = 82822277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82822303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41411154 + 41411155.

It is an arithmetic number, because the mean of its divisors is an integer number (41411155).

Almost surely, 2^82822309 is an apocalyptic number.

It is an amenable number.

82822309 is a deficient number, since it is larger than the sum of its proper divisors (1).

82822309 is an equidigital number, since it uses as much as digits as its factorization.

82822309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 82822309 is about 9100.6762935509. The cubic root of 82822309 is about 435.8955593203.

The spelling of 82822309 in words is "eighty-two million, eight hundred twenty-two thousand, three hundred nine".