85058399 has 2 divisors, whose sum is σ = 85058400. Its totient is φ = 85058398.

The previous prime is 85058387. The next prime is 85058401. The reversal of 85058399 is 99385058.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85058399 - 2²⁴ = 68281183 is a prime.

Together with 85058401, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85058999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42529199 + 42529200.

It is an arithmetic number, because the mean of its divisors is an integer number (42529200).

Almost surely, 2^85058399 is an apocalyptic number.

85058399 is a deficient number, since it is larger than the sum of its proper divisors (1).

85058399 is an equidigital number, since it uses as much as digits as its factorization.

85058399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 388800, while the sum is 47.

The square root of 85058399 is about 9222.7110439393. The cubic root of 85058399 is about 439.7836384605.

The spelling of 85058399 in words is "eighty-five million, fifty-eight thousand, three hundred ninety-nine".