1806802799 has 4 divisors (see below), whose sum is σ = 1813470240. Its totient is φ = 1800135360.

The previous prime is 1806802771. The next prime is 1806802813. The reversal of 1806802799 is 9972086081.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9972086081 = 61 ⋅163476821.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1806802799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1806802769) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3333314 + ... + 3333855.

It is an arithmetic number, because the mean of its divisors is an integer number (453367560).

Almost surely, 2^1806802799 is an apocalyptic number.

1806802799 is a deficient number, since it is larger than the sum of its proper divisors (6667441).

1806802799 is an equidigital number, since it uses as much as digits as its factorization.

1806802799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6667440.

The product of its (nonzero) digits is 435456, while the sum is 50.

The square root of 1806802799 is about 42506.5030201262. The cubic root of 1806802799 is about 1217.9709169764.

The spelling of 1806802799 in words is "one billion, eight hundred six million, eight hundred two thousand, seven hundred ninety-nine".