85599866 has 32 divisors (see below), whose sum is σ = 145414656. Its totient is φ = 37440000.

The previous prime is 85599853. The next prime is 85599869. The reversal of 85599866 is 66899558.

It is not an unprimeable number, because it can be changed into a prime (85599869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213266 + ... + 213666.

It is an arithmetic number, because the mean of its divisors is an integer number (4544208).

Almost surely, 2^85599866 is an apocalyptic number.

85599866 is a deficient number, since it is larger than the sum of its proper divisors (59814790).

85599866 is a wasteful number, since it uses less digits than its factorization.

85599866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758.

The product of its digits is 4665600, while the sum is 56.

The square root of 85599866 is about 9252.0195633170. The cubic root of 85599866 is about 440.7148606761.

The spelling of 85599866 in words is "eighty-five million, five hundred ninety-nine thousand, eight hundred sixty-six".