6813830 has 16 divisors (see below), whose sum is σ = 12295584. Its totient is φ = 2718720.

The previous prime is 6813817. The next prime is 6813847. The reversal of 6813830 is 383186.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 6813793 and 6813802.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5879 + ... + 6941.

It is an arithmetic number, because the mean of its divisors is an integer number (768474).

Almost surely, 2^6813830 is an apocalyptic number.

6813830 is a deficient number, since it is larger than the sum of its proper divisors (5481754).

6813830 is a wasteful number, since it uses less digits than its factorization.

6813830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1711.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 6813830 is about 2610.3313965855. The cubic root of 6813830 is about 189.5819988904.

The spelling of 6813830 in words is "six million, eight hundred thirteen thousand, eight hundred thirty".