289437 has 4 divisors (see below), whose sum is σ = 385920. Its totient is φ = 192956.

The previous prime is 289423. The next prime is 289439. The reversal of 289437 is 734982.

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 289437 - 2⁷ = 289309 is a prime.

It is a D-number.

289437 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 289398 and 289407.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 289437.

It is not an unprimeable number, because it can be changed into a prime (289439) 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, 48237 + ... + 48242.

It is an arithmetic number, because the mean of its divisors is an integer number (96480).

2²⁸⁹⁴³⁷ is an apocalyptic number.

It is an amenable number.

289437 is a deficient number, since it is larger than the sum of its proper divisors (96483).

289437 is an equidigital number, since it uses as much as digits as its factorization.

289437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96482.

The product of its digits is 12096, while the sum is 33.

The square root of 289437 is about 537.9934943845. The cubic root of 289437 is about 66.1481977469.

The spelling of 289437 in words is "two hundred eighty-nine thousand, four hundred thirty-seven".