806185799 has 2 divisors, whose sum is σ = 806185800. Its totient is φ = 806185798.

The previous prime is 806185777. The next prime is 806185843. The reversal of 806185799 is 997581608.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 806185799 - 2¹² = 806181703 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 806185799.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (806185739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 403092899 + 403092900.

It is an arithmetic number, because the mean of its divisors is an integer number (403092900).

Almost surely, 2^806185799 is an apocalyptic number.

806185799 is a deficient number, since it is larger than the sum of its proper divisors (1).

806185799 is an equidigital number, since it uses as much as digits as its factorization.

806185799 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 53.

The square root of 806185799 is about 28393.4111899222. The cubic root of 806185799 is about 930.7042874908.

The spelling of 806185799 in words is "eight hundred six million, one hundred eighty-five thousand, seven hundred ninety-nine".