808116823 has 2 divisors, whose sum is σ = 808116824. Its totient is φ = 808116822.

The previous prime is 808116791. The next prime is 808116853. The reversal of 808116823 is 328611808.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 808116823 - 2⁵ = 808116791 is a prime.

It is a super-2 number, since 2×808116823² = 1306105599231226658, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (808116853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404058411 + 404058412.

It is an arithmetic number, because the mean of its divisors is an integer number (404058412).

Almost surely, 2^808116823 is an apocalyptic number.

808116823 is a deficient number, since it is larger than the sum of its proper divisors (1).

808116823 is an equidigital number, since it uses as much as digits as its factorization.

808116823 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 37.

The square root of 808116823 is about 28427.3956422322. The cubic root of 808116823 is about 931.4467876667.

The spelling of 808116823 in words is "eight hundred eight million, one hundred sixteen thousand, eight hundred twenty-three".