82716619 has 2 divisors, whose sum is σ = 82716620. Its totient is φ = 82716618.

The previous prime is 82716617. The next prime is 82716629. The reversal of 82716619 is 91661728.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82716619 - 2¹ = 82716617 is a prime.

It is a super-2 number, since 2×82716619² = 13684078117582322, which contains 22 as substring.

Together with 82716617, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (82716617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41358309 + 41358310.

It is an arithmetic number, because the mean of its divisors is an integer number (41358310).

Almost surely, 2^82716619 is an apocalyptic number.

82716619 is a deficient number, since it is larger than the sum of its proper divisors (1).

82716619 is an equidigital number, since it uses as much as digits as its factorization.

82716619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 40.

The square root of 82716619 is about 9094.8677285599. The cubic root of 82716619 is about 435.7100641610.

The spelling of 82716619 in words is "eighty-two million, seven hundred sixteen thousand, six hundred nineteen".