82199827 has 2 divisors, whose sum is σ = 82199828. Its totient is φ = 82199826.

The previous prime is 82199813. The next prime is 82199857. The reversal of 82199827 is 72899128.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82199827 - 2⁷ = 82199699 is a prime.

It is not a weakly prime, because it can be changed into another prime (82199857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41099913 + 41099914.

It is an arithmetic number, because the mean of its divisors is an integer number (41099914).

Almost surely, 2^82199827 is an apocalyptic number.

82199827 is a deficient number, since it is larger than the sum of its proper divisors (1).

82199827 is an equidigital number, since it uses as much as digits as its factorization.

82199827 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 46.

The square root of 82199827 is about 9066.4120246104. The cubic root of 82199827 is about 434.8007666488.

The spelling of 82199827 in words is "eighty-two million, one hundred ninety-nine thousand, eight hundred twenty-seven".