802889 has 4 divisors (see below), whose sum is σ = 804756. Its totient is φ = 801024.

The previous prime is 802873. The next prime is 802909. The reversal of 802889 is 988208.

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 336400 + 466489 = 580^2 + 683^2 .

It is a cyclic number.

It is not a de Polignac number, because 802889 - 2⁴ = 802873 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 (802829) 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, 77 + ... + 1269.

It is an arithmetic number, because the mean of its divisors is an integer number (201189).

2⁸⁰²⁸⁸⁹ is an apocalyptic number.

It is an amenable number.

802889 is a deficient number, since it is larger than the sum of its proper divisors (1867).

802889 is a wasteful number, since it uses less digits than its factorization.

802889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1866.

The product of its (nonzero) digits is 9216, while the sum is 35.

The square root of 802889 is about 896.0407356811. The cubic root of 802889 is about 92.9433886781.

The spelling of 802889 in words is "eight hundred two thousand, eight hundred eighty-nine".