84184169 has 2 divisors, whose sum is σ = 84184170. Its totient is φ = 84184168.

The previous prime is 84184159. The next prime is 84184201. The reversal of 84184169 is 96148148.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83028544 + 1155625 = 9112^2 + 1075^2 .

It is a cyclic number.

It is not a de Polignac number, because 84184169 - 2²⁴ = 67406953 is a prime.

It is a super-2 number, since 2×84184169² = 14173948620441122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (84184159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42092084 + 42092085.

It is an arithmetic number, because the mean of its divisors is an integer number (42092085).

Almost surely, 2^84184169 is an apocalyptic number.

It is an amenable number.

84184169 is a deficient number, since it is larger than the sum of its proper divisors (1).

84184169 is an equidigital number, since it uses as much as digits as its factorization.

84184169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55296, while the sum is 41.

The square root of 84184169 is about 9175.1931314823. The cubic root of 84184169 is about 438.2717484773.

The spelling of 84184169 in words is "eighty-four million, one hundred eighty-four thousand, one hundred sixty-nine".