273666 has 16 divisors (see below), whose sum is σ = 579744. Its totient is φ = 85824.

The previous prime is 273653. The next prime is 273697. The reversal of 273666 is 666372.

It is a plaindrome in base 12.

It is a nialpdrome in base 13.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 273666.

It is an unprimeable number.

273666 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1240 + ... + 1443.

It is an arithmetic number, because the mean of its divisors is an integer number (36234).

2²⁷³⁶⁶⁶ is an apocalyptic number.

273666 is an abundant number, since it is smaller than the sum of its proper divisors (306078).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

273666 is a wasteful number, since it uses less digits than its factorization.

273666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2705.

The product of its digits is 9072, while the sum is 30.

The square root of 273666 is about 523.1309587474. The cubic root of 273666 is about 64.9242510093.

It can be divided in two parts, 27366 and 6, that added together give a palindrome (27372).

The spelling of 273666 in words is "two hundred seventy-three thousand, six hundred sixty-six".