2799643 has 16 divisors (see below), whose sum is σ = 3534336. Its totient is φ = 2154240.

The previous prime is 2799637. The next prime is 2799647. The reversal of 2799643 is 3469972.

2799643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2799643 - 2⁹ = 2799131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2799596 and 2799605.

It is not an unprimeable number, because it can be changed into a prime (2799647) 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 15 ways as a sum of consecutive naturals, for example, 7755 + ... + 8107.

It is an arithmetic number, because the mean of its divisors is an integer number (220896).

2^2799643 is an apocalyptic number.

2799643 is a deficient number, since it is larger than the sum of its proper divisors (734693).

2799643 is a wasteful number, since it uses less digits than its factorization.

2799643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474.

The product of its digits is 81648, while the sum is 40.

The square root of 2799643 is about 1673.2133755143. The cubic root of 2799643 is about 140.9399841828.

The spelling of 2799643 in words is "two million, seven hundred ninety-nine thousand, six hundred forty-three".