289801 has 4 divisors (see below), whose sum is σ = 291600. Its totient is φ = 288004.

The previous prime is 289789. The next prime is 289837. The reversal of 289801 is 108982.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 289801 - 2¹³ = 281609 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 289801.

It is not an unprimeable number, because it can be changed into a prime (289841) 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 in 3 ways as a sum of consecutive naturals, for example, 631 + ... + 988.

It is an arithmetic number, because the mean of its divisors is an integer number (72900).

2²⁸⁹⁸⁰¹ is an apocalyptic number.

It is an amenable number.

289801 is a deficient number, since it is larger than the sum of its proper divisors (1799).

289801 is a wasteful number, since it uses less digits than its factorization.

289801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1798.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 289801 is about 538.3316821440. The cubic root of 289801 is about 66.1759157620.

The spelling of 289801 in words is "two hundred eighty-nine thousand, eight hundred one".