85975199 has 2 divisors, whose sum is σ = 85975200. Its totient is φ = 85975198.

The previous prime is 85975193. The next prime is 85975217. The reversal of 85975199 is 99157958.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85975199 - 2²⁰ = 84926623 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85975199.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85975193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42987599 + 42987600.

It is an arithmetic number, because the mean of its divisors is an integer number (42987600).

Almost surely, 2^85975199 is an apocalyptic number.

85975199 is a deficient number, since it is larger than the sum of its proper divisors (1).

85975199 is an equidigital number, since it uses as much as digits as its factorization.

85975199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1020600, while the sum is 53.

The square root of 85975199 is about 9272.2812187724. The cubic root of 85975199 is about 441.3580612589.

The spelling of 85975199 in words is "eighty-five million, nine hundred seventy-five thousand, one hundred ninety-nine".