270009 has 12 divisors (see below), whose sum is σ = 410800. Its totient is φ = 170424.

The previous prime is 270001. The next prime is 270029. The reversal of 270009 is 900072.

270009 = T₁₅₉ + T₁₆₀ + ... + T₁₇₇.

It is not a de Polignac number, because 270009 - 2³ = 270001 is a prime.

It is a Duffinian number.

270009 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 269973 and 270000.

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 11 ways as a sum of consecutive naturals, for example, 619 + ... + 960.

2²⁷⁰⁰⁰⁹ is an apocalyptic number.

It is an amenable number.

270009 is a deficient number, since it is larger than the sum of its proper divisors (140791).

270009 is a wasteful number, since it uses less digits than its factorization.

270009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1604 (or 1601 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 18.

The square root of 270009 is about 519.6239024525. The cubic root of 270009 is about 64.6337588379.

The spelling of 270009 in words is "two hundred seventy thousand, nine".