6798409 has 16 divisors (see below), whose sum is σ = 7649280. Its totient is φ = 6011280.

The previous prime is 6798401. The next prime is 6798413. The reversal of 6798409 is 9048976.

It is not a de Polignac number, because 6798409 - 2³ = 6798401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6798401) 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 in 15 ways as a sum of consecutive naturals, for example, 20374 + ... + 20704.

It is an arithmetic number, because the mean of its divisors is an integer number (478080).

Almost surely, 2^6798409 is an apocalyptic number.

It is an amenable number.

6798409 is a deficient number, since it is larger than the sum of its proper divisors (850871).

6798409 is a wasteful number, since it uses less digits than its factorization.

6798409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420.

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

The square root of 6798409 is about 2607.3758839109. The cubic root of 6798409 is about 189.4388707576.

The spelling of 6798409 in words is "six million, seven hundred ninety-eight thousand, four hundred nine".