273489 has 4 divisors (see below), whose sum is σ = 364656. Its totient is φ = 182324.

The previous prime is 273473. The next prime is 273503. The reversal of 273489 is 984372.

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 273489 - 2⁴ = 273473 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (273289) 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, 45579 + ... + 45584.

It is an arithmetic number, because the mean of its divisors is an integer number (91164).

2²⁷³⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

273489 is a deficient number, since it is larger than the sum of its proper divisors (91167).

273489 is an equidigital number, since it uses as much as digits as its factorization.

273489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91166.

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

The square root of 273489 is about 522.9617576841. The cubic root of 273489 is about 64.9102508889.

The spelling of 273489 in words is "two hundred seventy-three thousand, four hundred eighty-nine".