85458199 has 2 divisors, whose sum is σ = 85458200. Its totient is φ = 85458198.

The previous prime is 85458193. The next prime is 85458203. The reversal of 85458199 is 99185458.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85458199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85458193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42729099 + 42729100.

It is an arithmetic number, because the mean of its divisors is an integer number (42729100).

Almost surely, 2^85458199 is an apocalyptic number.

85458199 is a deficient number, since it is larger than the sum of its proper divisors (1).

85458199 is an equidigital number, since it uses as much as digits as its factorization.

85458199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 518400, while the sum is 49.

The square root of 85458199 is about 9244.3603889074. The cubic root of 85458199 is about 440.4716000661.

The spelling of 85458199 in words is "eighty-five million, four hundred fifty-eight thousand, one hundred ninety-nine".