270665489 has 4 divisors (see below), whose sum is σ = 271589556. Its totient is φ = 269741424.

The previous prime is 270665459. The next prime is 270665491. The reversal of 270665489 is 984566072.

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 218537089 + 52128400 = 14783^2 + 7220^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-270665489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (270665459) 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, 461594 + ... + 462179.

It is an arithmetic number, because the mean of its divisors is an integer number (67897389).

Almost surely, 2^270665489 is an apocalyptic number.

It is an amenable number.

270665489 is a deficient number, since it is larger than the sum of its proper divisors (924067).

270665489 is an equidigital number, since it uses as much as digits as its factorization.

270665489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924066.

The product of its (nonzero) digits is 725760, while the sum is 47.

The square root of 270665489 is about 16451.9144478690. The cubic root of 270665489 is about 646.8609908018.

The spelling of 270665489 in words is "two hundred seventy million, six hundred sixty-five thousand, four hundred eighty-nine".