805192499 has 2 divisors, whose sum is σ = 805192500. Its totient is φ = 805192498.

The previous prime is 805192477. The next prime is 805192517. The reversal of 805192499 is 994291508.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-805192499 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (805192439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402596249 + 402596250.

It is an arithmetic number, because the mean of its divisors is an integer number (402596250).

Almost surely, 2^805192499 is an apocalyptic number.

805192499 is a deficient number, since it is larger than the sum of its proper divisors (1).

805192499 is an equidigital number, since it uses as much as digits as its factorization.

805192499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 233280, while the sum is 47.

The square root of 805192499 is about 28375.9140645724. The cubic root of 805192499 is about 930.3218907329.

The spelling of 805192499 in words is "eight hundred five million, one hundred ninety-two thousand, four hundred ninety-nine".