808609799 has 2 divisors, whose sum is σ = 808609800. Its totient is φ = 808609798.

The previous prime is 808609787. The next prime is 808609829. The reversal of 808609799 is 997906808.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 808609799 - 2¹² = 808605703 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (808609759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404304899 + 404304900.

It is an arithmetic number, because the mean of its divisors is an integer number (404304900).

Almost surely, 2^808609799 is an apocalyptic number.

808609799 is a deficient number, since it is larger than the sum of its proper divisors (1).

808609799 is an equidigital number, since it uses as much as digits as its factorization.

808609799 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1959552, while the sum is 56.

The square root of 808609799 is about 28436.0651110522. The cubic root of 808609799 is about 931.6361528503.

The spelling of 808609799 in words is "eight hundred eight million, six hundred nine thousand, seven hundred ninety-nine".