854089 has 2 divisors, whose sum is σ = 854090. Its totient is φ = 854088.

The previous prime is 854083. The next prime is 854093. The reversal of 854089 is 980458.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 751689 + 102400 = 867^2 + 320^2 .

It is a cyclic number.

It is not a de Polignac number, because 854089 - 2⁹ = 853577 is a prime.

It is not a weakly prime, because it can be changed into another prime (854083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427044 + 427045.

It is an arithmetic number, because the mean of its divisors is an integer number (427045).

2⁸⁵⁴⁰⁸⁹ is an apocalyptic number.

It is an amenable number.

854089 is a deficient number, since it is larger than the sum of its proper divisors (1).

854089 is an equidigital number, since it uses as much as digits as its factorization.

854089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 854089 is about 924.1693567740. The cubic root of 854089 is about 94.8784780437.

The spelling of 854089 in words is "eight hundred fifty-four thousand, eighty-nine".