808947 has 12 divisors (see below), whose sum is σ = 1212120. Its totient is φ = 539136.

The previous prime is 808937. The next prime is 808957. The reversal of 808947 is 749808.

It is an interprime number because it is at equal distance from previous prime (808937) and next prime (808957).

It is not a de Polignac number, because 808947 - 2¹⁰ = 807923 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 808947.

It is not an unprimeable number, because it can be changed into a prime (808937) 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 11 ways as a sum of consecutive naturals, for example, 1422 + ... + 1907.

It is an arithmetic number, because the mean of its divisors is an integer number (101010).

2⁸⁰⁸⁹⁴⁷ is an apocalyptic number.

808947 is a deficient number, since it is larger than the sum of its proper divisors (403173).

808947 is an equidigital number, since it uses as much as digits as its factorization.

808947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3344 (or 3332 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 808947 is about 899.4148097513. The cubic root of 808947 is about 93.1765636393.

The spelling of 808947 in words is "eight hundred eight thousand, nine hundred forty-seven".