2797779 has 4 divisors (see below), whose sum is σ = 3730376. Its totient is φ = 1865184.

The previous prime is 2797757. The next prime is 2797783. The reversal of 2797779 is 9777972.

It is a happy number.

2797779 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 not a de Polignac number, because 2797779 - 2⁸ = 2797523 is a prime.

It is a D-number.

It is a Duffinian number.

2797779 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2797679) 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, 466294 + ... + 466299.

It is an arithmetic number, because the mean of its divisors is an integer number (932594).

2^2797779 is an apocalyptic number.

2797779 is a deficient number, since it is larger than the sum of its proper divisors (932597).

2797779 is an equidigital number, since it uses as much as digits as its factorization.

2797779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932596.

The product of its digits is 388962, while the sum is 48.

The square root of 2797779 is about 1672.6562707263. The cubic root of 2797779 is about 140.9086979966.

The spelling of 2797779 in words is "two million, seven hundred ninety-seven thousand, seven hundred seventy-nine".