6800819 has 4 divisors (see below), whose sum is σ = 7035360. Its totient is φ = 6566280.

The previous prime is 6800809. The next prime is 6800821. The reversal of 6800819 is 9180086.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9180086 = 2 ⋅4590043.

It is a cyclic number.

It is not a de Polignac number, because 6800819 - 2¹⁶ = 6735283 is a prime.

It is a super-2 number, since 2×6800819² = 92502278141522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6800809) 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, 117227 + ... + 117284.

It is an arithmetic number, because the mean of its divisors is an integer number (1758840).

Almost surely, 2^6800819 is an apocalyptic number.

6800819 is a deficient number, since it is larger than the sum of its proper divisors (234541).

6800819 is a wasteful number, since it uses less digits than its factorization.

6800819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234540.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 6800819 is about 2607.8379934344. The cubic root of 6800819 is about 189.4612531386.

The spelling of 6800819 in words is "six million, eight hundred thousand, eight hundred nineteen".