270689 has 2 divisors, whose sum is σ = 270690. Its totient is φ = 270688.

The previous prime is 270679. The next prime is 270701. The reversal of 270689 is 986072.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 270400 + 289 = 520^2 + 17^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-270689 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (270619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135344 + 135345.

It is an arithmetic number, because the mean of its divisors is an integer number (135345).

2²⁷⁰⁶⁸⁹ is an apocalyptic number.

It is an amenable number.

270689 is a deficient number, since it is larger than the sum of its proper divisors (1).

270689 is an equidigital number, since it uses as much as digits as its factorization.

270689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 270689 is about 520.2778104052. The cubic root of 270689 is about 64.6879719835.

It can be divided in two parts, 270 and 689, that added together give a palindrome (959).

The spelling of 270689 in words is "two hundred seventy thousand, six hundred eighty-nine".