806408443 has 4 divisors (see below), whose sum is σ = 817455208. Its totient is φ = 795361680.

The previous prime is 806408437. The next prime is 806408479. The reversal of 806408443 is 344804608.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 806408443 - 2¹³ = 806400251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (806408483) 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 3 ways as a sum of consecutive naturals, for example, 5523273 + ... + 5523418.

It is an arithmetic number, because the mean of its divisors is an integer number (204363802).

Almost surely, 2^806408443 is an apocalyptic number.

806408443 is a deficient number, since it is larger than the sum of its proper divisors (11046765).

806408443 is a wasteful number, since it uses less digits than its factorization.

806408443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11046764.

The product of its (nonzero) digits is 73728, while the sum is 37.

The square root of 806408443 is about 28397.3316176010. The cubic root of 806408443 is about 930.7899570114.

The spelling of 806408443 in words is "eight hundred six million, four hundred eight thousand, four hundred forty-three".