84593189 has 2 divisors, whose sum is σ = 84593190. Its totient is φ = 84593188.

The previous prime is 84593183. The next prime is 84593191. The reversal of 84593189 is 98139548.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57988225 + 26604964 = 7615^2 + 5158^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84593189 is a prime.

It is a Sophie Germain prime.

Together with 84593191, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84593183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42296594 + 42296595.

It is an arithmetic number, because the mean of its divisors is an integer number (42296595).

Almost surely, 2^84593189 is an apocalyptic number.

It is an amenable number.

84593189 is a deficient number, since it is larger than the sum of its proper divisors (1).

84593189 is an equidigital number, since it uses as much as digits as its factorization.

84593189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 47.

The square root of 84593189 is about 9197.4555720590. The cubic root of 84593189 is about 438.9804025754.

The spelling of 84593189 in words is "eighty-four million, five hundred ninety-three thousand, one hundred eighty-nine".