808512899 has 2 divisors, whose sum is σ = 808512900. Its totient is φ = 808512898.

The previous prime is 808512883. The next prime is 808512949. The reversal of 808512899 is 998215808.

It is an a-pointer prime, because the next prime (808512949) can be obtained adding 808512899 to its sum of digits (50).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 808512899 - 2⁴ = 808512883 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (808512869) 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 as a sum of consecutive naturals, namely, 404256449 + 404256450.

It is an arithmetic number, because the mean of its divisors is an integer number (404256450).

Almost surely, 2^808512899 is an apocalyptic number.

808512899 is a deficient number, since it is larger than the sum of its proper divisors (1).

808512899 is an equidigital number, since it uses as much as digits as its factorization.

808512899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 414720, while the sum is 50.

The square root of 808512899 is about 28434.3612377701. The cubic root of 808512899 is about 931.5989370636.

The spelling of 808512899 in words is "eight hundred eight million, five hundred twelve thousand, eight hundred ninety-nine".