836189 has 2 divisors, whose sum is σ = 836190. Its totient is φ = 836188.

The previous prime is 836183. The next prime is 836191. The reversal of 836189 is 981638.

836189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 432964 + 403225 = 658^2 + 635^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-836189 is a prime.

It is a Sophie Germain prime.

Together with 836191, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (836183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 418094 + 418095.

It is an arithmetic number, because the mean of its divisors is an integer number (418095).

2⁸³⁶¹⁸⁹ is an apocalyptic number.

It is an amenable number.

836189 is a deficient number, since it is larger than the sum of its proper divisors (1).

836189 is an equidigital number, since it uses as much as digits as its factorization.

836189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 35.

The square root of 836189 is about 914.4337045407. The cubic root of 836189 is about 94.2109717463.

The spelling of 836189 in words is "eight hundred thirty-six thousand, one hundred eighty-nine".