6823406 has 4 divisors (see below), whose sum is σ = 10235112. Its totient is φ = 3411702.

The previous prime is 6823391. The next prime is 6823423. The reversal of 6823406 is 6043286.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6043286 = 2 ⋅3021643.

It is a Curzon number.

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 as a sum of consecutive naturals, namely, 1705850 + ... + 1705853.

It is an arithmetic number, because the mean of its divisors is an integer number (2558778).

Almost surely, 2^6823406 is an apocalyptic number.

6823406 is a deficient number, since it is larger than the sum of its proper divisors (3411706).

6823406 is a wasteful number, since it uses less digits than its factorization.

6823406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3411705.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 6823406 is about 2612.1650024453. The cubic root of 6823406 is about 189.6707687123.

The spelling of 6823406 in words is "six million, eight hundred twenty-three thousand, four hundred six".