806847993 has 16 divisors (see below), whose sum is σ = 1366092160. Its totient is φ = 461055888.

The previous prime is 806847989. The next prime is 806848043. The reversal of 806847993 is 399748608.

806847993 is a `hidden beast` number, since 80 + 6 + 8 + 479 + 93 = 666.

806847993 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 806847993 - 2² = 806847989 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (806847983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2134330 + ... + 2134707.

It is an arithmetic number, because the mean of its divisors is an integer number (85380760).

Almost surely, 2^806847993 is an apocalyptic number.

It is an amenable number.

806847993 is a deficient number, since it is larger than the sum of its proper divisors (559244167).

806847993 is a wasteful number, since it uses less digits than its factorization.

806847993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4269053 (or 4269047 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The square root of 806847993 is about 28405.0698467721. The cubic root of 806847993 is about 930.9590418868.

The spelling of 806847993 in words is "eight hundred six million, eight hundred forty-seven thousand, nine hundred ninety-three".