2740279 has 4 divisors (see below), whose sum is σ = 2761984. Its totient is φ = 2718576.

The previous prime is 2740267. The next prime is 2740291. The reversal of 2740279 is 9720472.

It is a happy number.

2740279 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (2740267) and next prime (2740291).

It is a cyclic number.

It is not a de Polignac number, because 2740279 - 2¹¹ = 2738231 is a prime.

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 2740279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2740219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10662 + ... + 10915.

It is an arithmetic number, because the mean of its divisors is an integer number (690496).

2^2740279 is an apocalyptic number.

2740279 is a deficient number, since it is larger than the sum of its proper divisors (21705).

2740279 is a wasteful number, since it uses less digits than its factorization.

2740279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21704.

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

The square root of 2740279 is about 1655.3788086115. The cubic root of 2740279 is about 139.9366890609.

The spelling of 2740279 in words is "two million, seven hundred forty thousand, two hundred seventy-nine".