82086619 has 2 divisors, whose sum is σ = 82086620. Its totient is φ = 82086618.

The previous prime is 82086611. The next prime is 82086623. The reversal of 82086619 is 91668028.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82086619 - 2³ = 82086611 is a prime.

It is a super-2 number, since 2×82086619² = 13476426037702322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (82086611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41043309 + 41043310.

It is an arithmetic number, because the mean of its divisors is an integer number (41043310).

Almost surely, 2^82086619 is an apocalyptic number.

82086619 is a deficient number, since it is larger than the sum of its proper divisors (1).

82086619 is an equidigital number, since it uses as much as digits as its factorization.

82086619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 82086619 is about 9060.1666099471. The cubic root of 82086619 is about 434.6010681766.

The spelling of 82086619 in words is "eighty-two million, eighty-six thousand, six hundred nineteen".