808668853 has 2 divisors, whose sum is σ = 808668854. Its totient is φ = 808668852.

The previous prime is 808668851. The next prime is 808668893. The reversal of 808668853 is 358866808.

It is a happy number.

808668853 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 771617284 + 37051569 = 27778^2 + 6087^2 .

It is a cyclic number.

It is not a de Polignac number, because 808668853 - 2¹ = 808668851 is a prime.

Together with 808668851, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 808668853.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (808668851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404334426 + 404334427.

It is an arithmetic number, because the mean of its divisors is an integer number (404334427).

Almost surely, 2^808668853 is an apocalyptic number.

It is an amenable number.

808668853 is a deficient number, since it is larger than the sum of its proper divisors (1).

808668853 is an equidigital number, since it uses as much as digits as its factorization.

808668853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2211840, while the sum is 52.

The square root of 808668853 is about 28437.1034565759. The cubic root of 808668853 is about 931.6588318987.

The spelling of 808668853 in words is "eight hundred eight million, six hundred sixty-eight thousand, eight hundred fifty-three".