270489 has 4 divisors (see below), whose sum is σ = 360656. Its totient is φ = 180324.

The previous prime is 270463. The next prime is 270493. The reversal of 270489 is 984072.

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 de Polignac number, because none of the positive numbers 2^k-270489 is a prime.

It is a D-number.

It is a Duffinian number.

270489 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (270689) 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, 45079 + ... + 45084.

It is an arithmetic number, because the mean of its divisors is an integer number (90164).

2²⁷⁰⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

270489 is a deficient number, since it is larger than the sum of its proper divisors (90167).

270489 is an equidigital number, since it uses as much as digits as its factorization.

270489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90166.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 270489 is about 520.0855698825. The cubic root of 270489 is about 64.6720363746.

The spelling of 270489 in words is "two hundred seventy thousand, four hundred eighty-nine".