272666 has 4 divisors (see below), whose sum is σ = 409002. Its totient is φ = 136332.

The previous prime is 272659. The next prime is 272683. The reversal of 272666 is 666272.

272666 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 271441 + 1225 = 521^2 + 35^2 .

272666 is a modest number, since divided by 666 gives 272 as remainder.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 272666.

It is an unprimeable number.

272666 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68165 + ... + 68168.

2²⁷²⁶⁶⁶ is an apocalyptic number.

272666 is a deficient number, since it is larger than the sum of its proper divisors (136336).

272666 is a wasteful number, since it uses less digits than its factorization.

272666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136335.

The product of its digits is 6048, while the sum is 29.

The square root of 272666 is about 522.1743004017. The cubic root of 272666 is about 64.8450748217.

It can be divided in two parts, 27266 and 6, that added together give a palindrome (27272).

The spelling of 272666 in words is "two hundred seventy-two thousand, six hundred sixty-six".