272749 has 4 divisors (see below), whose sum is σ = 279136. Its totient is φ = 266364.

The previous prime is 272737. The next prime is 272759. The reversal of 272749 is 947272.

It is a happy number.

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 272749 - 2⁵ = 272717 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 272749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272719) 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, 3129 + ... + 3214.

It is an arithmetic number, because the mean of its divisors is an integer number (69784).

2²⁷²⁷⁴⁹ is an apocalyptic number.

It is an amenable number.

272749 is a deficient number, since it is larger than the sum of its proper divisors (6387).

272749 is an equidigital number, since it uses as much as digits as its factorization.

272749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6386.

The product of its digits is 7056, while the sum is 31.

The square root of 272749 is about 522.2537697327. The cubic root of 272749 is about 64.8516538050.

The spelling of 272749 in words is "two hundred seventy-two thousand, seven hundred forty-nine".