801189 has 6 divisors (see below), whose sum is σ = 1157286. Its totient is φ = 534120.

The previous prime is 801187. The next prime is 801197. The reversal of 801189 is 981108.

801189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 736164 + 65025 = 858^2 + 255^2 .

It is not a de Polignac number, because 801189 - 2¹ = 801187 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (801187) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 44502 + ... + 44519.

It is an arithmetic number, because the mean of its divisors is an integer number (192881).

2⁸⁰¹¹⁸⁹ is an apocalyptic number.

It is an amenable number.

801189 is a deficient number, since it is larger than the sum of its proper divisors (356097).

801189 is a wasteful number, since it uses less digits than its factorization.

801189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89027 (or 89024 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 27.

The square root of 801189 is about 895.0916154227. The cubic root of 801189 is about 92.8777443160.

It can be divided in two parts, 8011 and 89, that added together give a square (8100 = 90²).

The spelling of 801189 in words is "eight hundred one thousand, one hundred eighty-nine".