806004639 has 12 divisors (see below), whose sum is σ = 1270068072. Its totient is φ = 488487600.

The previous prime is 806004637. The next prime is 806004649. The reversal of 806004639 is 936400608.

806004639 is a `hidden beast` number, since 8 + 0 + 600 + 46 + 3 + 9 = 666.

806004639 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 806004639 - 2¹ = 806004637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (806004637) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4070632 + ... + 4070829.

It is an arithmetic number, because the mean of its divisors is an integer number (105839006).

Almost surely, 2^806004639 is an apocalyptic number.

806004639 is a deficient number, since it is larger than the sum of its proper divisors (464063433).

806004639 is a wasteful number, since it uses less digits than its factorization.

806004639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8141478 (or 8141475 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 806004639 is about 28390.2208339421. The cubic root of 806004639 is about 930.6345686494.

The spelling of 806004639 in words is "eight hundred six million, four thousand, six hundred thirty-nine".