808440943 has 2 divisors, whose sum is σ = 808440944. Its totient is φ = 808440942.

The previous prime is 808440931. The next prime is 808440977. The reversal of 808440943 is 349044808.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 808440943 - 2¹⁷ = 808309871 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 808440896 and 808440905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (808441943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404220471 + 404220472.

It is an arithmetic number, because the mean of its divisors is an integer number (404220472).

Almost surely, 2^808440943 is an apocalyptic number.

808440943 is a deficient number, since it is larger than the sum of its proper divisors (1).

808440943 is an equidigital number, since it uses as much as digits as its factorization.

808440943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 808440943 is about 28433.0959095207. The cubic root of 808440943 is about 931.5712994415.

The spelling of 808440943 in words is "eight hundred eight million, four hundred forty thousand, nine hundred forty-three".