272865217 has 4 divisors (see below), whose sum is σ = 273567060. Its totient is φ = 272163376.

The previous prime is 272865211. The next prime is 272865227. The reversal of 272865217 is 712568272.

It is a happy number.

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 127035441 + 145829776 = 11271^2 + 12076^2 .

It is a cyclic number.

It is not a de Polignac number, because 272865217 - 2¹¹ = 272863169 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 272865217.

It is not an unprimeable number, because it can be changed into a prime (272865211) 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, 350338 + ... + 351115.

It is an arithmetic number, because the mean of its divisors is an integer number (68391765).

Almost surely, 2^272865217 is an apocalyptic number.

It is an amenable number.

272865217 is a deficient number, since it is larger than the sum of its proper divisors (701843).

272865217 is an equidigital number, since it uses as much as digits as its factorization.

272865217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701842.

The product of its digits is 94080, while the sum is 40.

The square root of 272865217 is about 16518.6324191805. The cubic root of 272865217 is about 648.6086348675.

The spelling of 272865217 in words is "two hundred seventy-two million, eight hundred sixty-five thousand, two hundred seventeen".