2739 has 8 divisors (see below), whose sum is σ = 4032. Its totient is φ = 1640.

The previous prime is 2731. The next prime is 2741. The reversal of 2739 is 9372.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2739 - 2³ = 2731 is a prime.

It is a d-powerful number, because it can be written as 2⁷ + 3⁷ + 7³ + 9² .

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (2731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9 + ... + 74.

It is an arithmetic number, because the mean of its divisors is an integer number (504).

2²⁷³⁹ is an apocalyptic number.

2739 is a deficient number, since it is larger than the sum of its proper divisors (1293).

2739 is a wasteful number, since it uses less digits than its factorization.

2739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97.

The product of its digits is 378, while the sum is 21.

The square root of 2739 is about 52.3354564325. The cubic root of 2739 is about 13.9914914286.

It can be divided in two parts, 273 and 9, that added together give a palindrome (282).

The spelling of 2739 in words is "two thousand, seven hundred thirty-nine".