82719269 has 2 divisors, whose sum is σ = 82719270. Its totient is φ = 82719268.

The previous prime is 82719257. The next prime is 82719271. The reversal of 82719269 is 96291728.

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., 45387169 + 37332100 = 6737^2 + 6110^2 .

It is a cyclic number.

It is not a de Polignac number, because 82719269 - 2¹⁶ = 82653733 is a prime.

It is a super-2 number, since 2×82719269² = 13684954927788722, which contains 22 as substring.

Together with 82719271, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_4818878 and since 82719269 and 4818878 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82719289) 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, 41359634 + 41359635.

It is an arithmetic number, because the mean of its divisors is an integer number (41359635).

Almost surely, 2^82719269 is an apocalyptic number.

It is an amenable number.

82719269 is a deficient number, since it is larger than the sum of its proper divisors (1).

82719269 is an equidigital number, since it uses as much as digits as its factorization.

82719269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 44.

The square root of 82719269 is about 9095.0134139538. The cubic root of 82719269 is about 435.7147170726.

The spelling of 82719269 in words is "eighty-two million, seven hundred nineteen thousand, two hundred sixty-nine".