82111697 has 2 divisors, whose sum is σ = 82111698. Its totient is φ = 82111696.

The previous prime is 82111669. The next prime is 82111709. The reversal of 82111697 is 79611128.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74718736 + 7392961 = 8644^2 + 2719^2 .

It is a cyclic number.

It is not a de Polignac number, because 82111697 - 2¹⁸ = 81849553 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (82111607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41055848 + 41055849.

It is an arithmetic number, because the mean of its divisors is an integer number (41055849).

Almost surely, 2^82111697 is an apocalyptic number.

It is an amenable number.

82111697 is a deficient number, since it is larger than the sum of its proper divisors (1).

82111697 is an equidigital number, since it uses as much as digits as its factorization.

82111697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 35.

The square root of 82111697 is about 9061.5504743945. The cubic root of 82111697 is about 434.6453214951.

The spelling of 82111697 in words is "eighty-two million, one hundred eleven thousand, six hundred ninety-seven".