2740979 has 4 divisors (see below), whose sum is σ = 2860176. Its totient is φ = 2621784.

The previous prime is 2740957. The next prime is 2740987. The reversal of 2740979 is 9790472.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2740979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2740919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59564 + ... + 59609.

It is an arithmetic number, because the mean of its divisors is an integer number (715044).

2^2740979 is an apocalyptic number.

2740979 is a deficient number, since it is larger than the sum of its proper divisors (119197).

2740979 is a wasteful number, since it uses less digits than its factorization.

2740979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119196.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 2740979 is about 1655.5902270792. The cubic root of 2740979 is about 139.9486035828.

The spelling of 2740979 in words is "two million, seven hundred forty thousand, nine hundred seventy-nine".