11747 has 4 divisors (see below), whose sum is σ = 12456. Its totient is φ = 11040.

The previous prime is 11743. The next prime is 11777. The reversal of 11747 is 74711.

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

It is a cyclic number.

It is not a de Polignac number, because 11747 - 2² = 11743 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11743) 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, 329 + ... + 362.

It is an arithmetic number, because the mean of its divisors is an integer number (3114).

2¹¹⁷⁴⁷ is an apocalyptic number.

11747 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

11747 is a deficient number, since it is larger than the sum of its proper divisors (709).

11747 is an equidigital number, since it uses as much as digits as its factorization.

11747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708.

The product of its digits is 196, while the sum is 20.

The square root of 11747 is about 108.3835780919. The cubic root of 11747 is about 22.7322447304.

The spelling of 11747 in words is "eleven thousand, seven hundred forty-seven", and thus it is an iban number.