884389 has 6 divisors (see below), whose sum is σ = 972230. Its totient is φ = 803880.

The previous prime is 884371. The next prime is 884417. The reversal of 884389 is 983488.

It can be written as a sum of positive squares in only one way, i.e., 736164 + 148225 = 858^2 + 385^2 .

It is not a de Polignac number, because 884389 - 2⁹ = 883877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (884309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3534 + ... + 3775.

2⁸⁸⁴³⁸⁹ is an apocalyptic number.

It is an amenable number.

884389 is a deficient number, since it is larger than the sum of its proper divisors (87841).

884389 is a wasteful number, since it uses less digits than its factorization.

884389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7331 (or 7320 counting only the distinct ones).

The product of its digits is 55296, while the sum is 40.

The square root of 884389 is about 940.4195872056. The cubic root of 884389 is about 95.9874477223.

Subtracting 884389 from its reverse (983488), we obtain a palindrome (99099).

The spelling of 884389 in words is "eight hundred eighty-four thousand, three hundred eighty-nine".