808940047 has 2 divisors, whose sum is σ = 808940048. Its totient is φ = 808940046.

The previous prime is 808940023. The next prime is 808940051. The reversal of 808940047 is 740049808.

808940047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 808940047 - 2⁷ = 808939919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 808939991 and 808940009.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (808940017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404470023 + 404470024.

It is an arithmetic number, because the mean of its divisors is an integer number (404470024).

Almost surely, 2^808940047 is an apocalyptic number.

808940047 is a deficient number, since it is larger than the sum of its proper divisors (1).

808940047 is an equidigital number, since it uses as much as digits as its factorization.

808940047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 808940047 is about 28441.8713695143. The cubic root of 808940047 is about 931.7629668383.

The spelling of 808940047 in words is "eight hundred eight million, nine hundred forty thousand, forty-seven".