808860859 has 2 divisors, whose sum is σ = 808860860. Its totient is φ = 808860858.

The previous prime is 808860851. The next prime is 808860863. The reversal of 808860859 is 958068808.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 808860859 - 2³ = 808860851 is a prime.

It is not a weakly prime, because it can be changed into another prime (808860851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404430429 + 404430430.

It is an arithmetic number, because the mean of its divisors is an integer number (404430430).

Almost surely, 2^808860859 is an apocalyptic number.

808860859 is a deficient number, since it is larger than the sum of its proper divisors (1).

808860859 is an equidigital number, since it uses as much as digits as its factorization.

808860859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1105920, while the sum is 52.

The square root of 808860859 is about 28440.4792329525. The cubic root of 808860859 is about 931.7325620908.

The spelling of 808860859 in words is "eight hundred eight million, eight hundred sixty thousand, eight hundred fifty-nine".