2819798 has 4 divisors (see below), whose sum is σ = 4229700. Its totient is φ = 1409898.

The previous prime is 2819797. The next prime is 2819801. The reversal of 2819798 is 8979182.

2819798 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, and also an emirpimes, since its reverse is a distinct semiprime: 8979182 = 2 ⋅4489591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2819797) 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, 704948 + ... + 704951.

It is an arithmetic number, because the mean of its divisors is an integer number (1057425).

2^2819798 is an apocalyptic number.

2819798 is a deficient number, since it is larger than the sum of its proper divisors (1409902).

2819798 is a wasteful number, since it uses less digits than its factorization.

2819798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409901.

The product of its digits is 72576, while the sum is 44.

The square root of 2819798 is about 1679.2254166728. The cubic root of 2819798 is about 141.2773909864.

The spelling of 2819798 in words is "two million, eight hundred nineteen thousand, seven hundred ninety-eight".