84105193 has 2 divisors, whose sum is σ = 84105194. Its totient is φ = 84105192.

The previous prime is 84105173. The next prime is 84105209. The reversal of 84105193 is 39150148.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67848169 + 16257024 = 8237^2 + 4032^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84105193 is a prime.

It is not a weakly prime, because it can be changed into another prime (84105113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42052596 + 42052597.

It is an arithmetic number, because the mean of its divisors is an integer number (42052597).

Almost surely, 2^84105193 is an apocalyptic number.

It is an amenable number.

84105193 is a deficient number, since it is larger than the sum of its proper divisors (1).

84105193 is an equidigital number, since it uses as much as digits as its factorization.

84105193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 84105193 is about 9170.8883430124. Note that the first 3 decimals coincide. The cubic root of 84105193 is about 438.1346531085.

The spelling of 84105193 in words is "eighty-four million, one hundred five thousand, one hundred ninety-three".