2712739 has 4 divisors (see below), whose sum is σ = 2717424. Its totient is φ = 2708056.

The previous prime is 2712733. The next prime is 2712767. The reversal of 2712739 is 9372172.

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 2712739 - 2¹⁹ = 2188451 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 2712739.

It is not an unprimeable number, because it can be changed into a prime (2712733) 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, 1327 + ... + 2680.

It is an arithmetic number, because the mean of its divisors is an integer number (679356).

2^2712739 is an apocalyptic number.

2712739 is a deficient number, since it is larger than the sum of its proper divisors (4685).

2712739 is an equidigital number, since it uses as much as digits as its factorization.

2712739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4684.

The product of its digits is 5292, while the sum is 31.

The square root of 2712739 is about 1647.0394652224. The cubic root of 2712739 is about 139.4663185258.

The spelling of 2712739 in words is "two million, seven hundred twelve thousand, seven hundred thirty-nine".