82907219 has 2 divisors, whose sum is σ = 82907220. Its totient is φ = 82907218.

The previous prime is 82907189. The next prime is 82907221. The reversal of 82907219 is 91270928.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82907219 - 2²⁰ = 81858643 is a prime.

It is a super-2 number, since 2×82907219² = 13747213924627922, which contains 22 as substring.

Together with 82907221, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (82907239) 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, 41453609 + 41453610.

It is an arithmetic number, because the mean of its divisors is an integer number (41453610).

Almost surely, 2^82907219 is an apocalyptic number.

82907219 is a deficient number, since it is larger than the sum of its proper divisors (1).

82907219 is an equidigital number, since it uses as much as digits as its factorization.

82907219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 82907219 is about 9105.3401364254. The cubic root of 82907219 is about 436.0444694844.

The spelling of 82907219 in words is "eighty-two million, nine hundred seven thousand, two hundred nineteen".