845099 has 2 divisors, whose sum is σ = 845100. Its totient is φ = 845098.

The previous prime is 845083. The next prime is 845111. The reversal of 845099 is 990548.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 845099 - 2⁴ = 845083 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 845099.

It is not a weakly prime, because it can be changed into another prime (845069) 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, 422549 + 422550.

It is an arithmetic number, because the mean of its divisors is an integer number (422550).

2⁸⁴⁵⁰⁹⁹ is an apocalyptic number.

845099 is a deficient number, since it is larger than the sum of its proper divisors (1).

845099 is an equidigital number, since it uses as much as digits as its factorization.

845099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 845099 is about 919.2926628664. The cubic root of 845099 is about 94.5444114384.

The spelling of 845099 in words is "eight hundred forty-five thousand, ninety-nine".