854389 has 4 divisors (see below), whose sum is σ = 858924. Its totient is φ = 849856.

The previous prime is 854387. The next prime is 854407. The reversal of 854389 is 983458.

854389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 412164 + 442225 = 642^2 + 665^2 .

It is a cyclic number.

It is not a de Polignac number, because 854389 - 2¹ = 854387 is a prime.

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

It is a Duffinian number.

854389 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (854383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1972 + ... + 2365.

It is an arithmetic number, because the mean of its divisors is an integer number (214731).

2⁸⁵⁴³⁸⁹ is an apocalyptic number.

It is an amenable number.

854389 is a deficient number, since it is larger than the sum of its proper divisors (4535).

854389 is a wasteful number, since it uses less digits than its factorization.

854389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4534.

The product of its digits is 34560, while the sum is 37.

The square root of 854389 is about 924.3316504372. The cubic root of 854389 is about 94.8895854776.

The spelling of 854389 in words is "eight hundred fifty-four thousand, three hundred eighty-nine".