6406806 has 32 divisors (see below), whose sum is σ = 14796288. Its totient is φ = 1811520.

The previous prime is 6406793. The next prime is 6406823. The reversal of 6406806 is 6086046.

It is a happy number.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3586 + ... + 5066.

It is an arithmetic number, because the mean of its divisors is an integer number (462384).

Almost surely, 2^6406806 is an apocalyptic number.

6406806 is an abundant number, since it is smaller than the sum of its proper divisors (8389482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6406806 is a wasteful number, since it uses less digits than its factorization.

6406806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1596.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 6406806 is about 2531.1669245627. The cubic root of 6406806 is about 185.7293438903.

The spelling of 6406806 in words is "six million, four hundred six thousand, eight hundred six".