2747979 has 16 divisors (see below), whose sum is σ = 4384800. Its totient is φ = 1690848.

The previous prime is 2747977. The next prime is 2748013. The reversal of 2747979 is 9797472.

It is a happy number.

It is not a de Polignac number, because 2747979 - 2¹ = 2747977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2747977) 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 15 ways as a sum of consecutive naturals, for example, 3564 + ... + 4265.

It is an arithmetic number, because the mean of its divisors is an integer number (274050).

2^2747979 is an apocalyptic number.

2747979 is a deficient number, since it is larger than the sum of its proper divisors (1636821).

2747979 is a wasteful number, since it uses less digits than its factorization.

2747979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7851 (or 7845 counting only the distinct ones).

The product of its digits is 222264, while the sum is 45.

The square root of 2747979 is about 1657.7029287541. The cubic root of 2747979 is about 140.0676373855.

The spelling of 2747979 in words is "two million, seven hundred forty-seven thousand, nine hundred seventy-nine".