85099868 has 36 divisors (see below), whose sum is σ = 173804400. Its totient is φ = 36352512.

The previous prime is 85099853. The next prime is 85099901. The reversal of 85099868 is 86899058.

It is a nialpdrome in base 14.

It is a congruent number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 87521 + ... + 88487.

It is an arithmetic number, because the mean of its divisors is an integer number (4827900).

Almost surely, 2^85099868 is an apocalyptic number.

It is an amenable number.

85099868 is an abundant number, since it is smaller than the sum of its proper divisors (88704532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85099868 is a wasteful number, since it uses less digits than its factorization.

85099868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1434 (or 1425 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 53.

The square root of 85099868 is about 9224.9589700985. The cubic root of 85099868 is about 439.8550969131.

The spelling of 85099868 in words is "eighty-five million, ninety-nine thousand, eight hundred sixty-eight".