2799826 has 4 divisors (see below), whose sum is σ = 4199742. Its totient is φ = 1399912.

The previous prime is 2799817. The next prime is 2799829. The reversal of 2799826 is 6289972.

It is a happy number.

2799826 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 can be written as a sum of positive squares in only one way, i.e., 2640625 + 159201 = 1625^2 + 399^2 .

It is not an unprimeable number, because it can be changed into a prime (2799829) 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 as a sum of consecutive naturals, namely, 699955 + ... + 699958.

2^2799826 is an apocalyptic number.

2799826 is a deficient number, since it is larger than the sum of its proper divisors (1399916).

2799826 is a wasteful number, since it uses less digits than its factorization.

2799826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1399915.

The product of its digits is 108864, while the sum is 43.

The square root of 2799826 is about 1673.2680598159. The cubic root of 2799826 is about 140.9430549856.

Subtracting from 2799826 its product of digits (108864), we obtain a palindrome (2690962).

The spelling of 2799826 in words is "two million, seven hundred ninety-nine thousand, eight hundred twenty-six".