2799803 has 2 divisors, whose sum is σ = 2799804. Its totient is φ = 2799802.

The previous prime is 2799793. The next prime is 2799809. The reversal of 2799803 is 3089972.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2799803 - 2⁴ = 2799787 is a prime.

It is not a weakly prime, because it can be changed into another prime (2799809) 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 as a sum of consecutive naturals, namely, 1399901 + 1399902.

It is an arithmetic number, because the mean of its divisors is an integer number (1399902).

2^2799803 is an apocalyptic number.

2799803 is a deficient number, since it is larger than the sum of its proper divisors (1).

2799803 is an equidigital number, since it uses as much as digits as its factorization.

2799803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 2799803 is about 1673.2611870237. The cubic root of 2799803 is about 140.9426690451.

It can be divided in two parts, 27 and 99803, that multiplied together give a triangular number (2694681 = T₂₃₂₁).

The spelling of 2799803 in words is "two million, seven hundred ninety-nine thousand, eight hundred three".