82104173 has 2 divisors, whose sum is σ = 82104174. Its totient is φ = 82104172.

The previous prime is 82104131. The next prime is 82104179. The reversal of 82104173 is 37140128.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55920484 + 26183689 = 7478^2 + 5117^2 .

It is a cyclic number.

It is not a de Polignac number, because 82104173 - 2²² = 77909869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82104179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41052086 + 41052087.

It is an arithmetic number, because the mean of its divisors is an integer number (41052087).

Almost surely, 2^82104173 is an apocalyptic number.

It is an amenable number.

82104173 is a deficient number, since it is larger than the sum of its proper divisors (1).

82104173 is an equidigital number, since it uses as much as digits as its factorization.

82104173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 82104173 is about 9061.1353041437. The cubic root of 82104173 is about 434.6320453870.

The spelling of 82104173 in words is "eighty-two million, one hundred four thousand, one hundred seventy-three".