272321 has 4 divisors (see below), whose sum is σ = 311232. Its totient is φ = 233412.

The previous prime is 272317. The next prime is 272329. The reversal of 272321 is 123272.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 272321 - 2² = 272317 is a prime.

It is an alternating number because its digits alternate between even and odd.

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 272321.

It is not an unprimeable number, because it can be changed into a prime (272329) 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, 19445 + ... + 19458.

It is an arithmetic number, because the mean of its divisors is an integer number (77808).

2²⁷²³²¹ is an apocalyptic number.

It is an amenable number.

272321 is a deficient number, since it is larger than the sum of its proper divisors (38911).

272321 is an equidigital number, since it uses as much as digits as its factorization.

272321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38910.

The product of its digits is 168, while the sum is 17.

The square root of 272321 is about 521.8438463755. The cubic root of 272321 is about 64.8177141278.

Adding to 272321 its reverse (123272), we get a palindrome (395593).

It can be divided in two parts, 2723 and 21, that added together give a cube (2744 = 14³).

The spelling of 272321 in words is "two hundred seventy-two thousand, three hundred twenty-one", and thus it is an iban number.