2747 has 4 divisors (see below), whose sum is σ = 2856. Its totient is φ = 2640.

The previous prime is 2741. The next prime is 2749. The reversal of 2747 is 7472.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2747 - 2^{4} = 2731 is a prime.

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

It is a Duffinian number.

It is a plaindrome in base 13 and base 16.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (2741) 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, 8 + ... + 74.

It is an arithmetic number, because the mean of its divisors is an integer number (714).

2747 is a deficient number, since it is larger than the sum of its proper divisors (109).

2747 is an equidigital number, since it uses as much as digits as its factorization.

2747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108.

The product of its digits is 392, while the sum is 20.

The square root of 2747 is about 52.4118307255. The cubic root of 2747 is about 14.0051001826.

The spelling of 2747 in words is "two thousand, seven hundred forty-seven", and thus it is an iban number.

• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.064 sec. • engine limits •