270005 has 4 divisors (see below), whose sum is σ = 324012. Its totient is φ = 216000.

The previous prime is 270001. The next prime is 270029. The reversal of 270005 is 500072.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 77284 + 192721 = 278^2 + 439^2 .

It is not a de Polignac number, because 270005 - 2² = 270001 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (270001) 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, 26996 + ... + 27005.

It is an arithmetic number, because the mean of its divisors is an integer number (81003).

2²⁷⁰⁰⁰⁵ is an apocalyptic number.

It is an amenable number.

270005 is a deficient number, since it is larger than the sum of its proper divisors (54007).

270005 is an equidigital number, since it uses as much as digits as its factorization.

270005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54006.

The product of its (nonzero) digits is 70, while the sum is 14.

The square root of 270005 is about 519.6200535006. The cubic root of 270005 is about 64.6334396679.

Adding to 270005 its reverse (500072), we get a palindrome (770077).

It can be divided in two parts, 2 and 70005, that added together give a palindrome (70007).

The spelling of 270005 in words is "two hundred seventy thousand, five".