85899968 has 56 divisors (see below), whose sum is σ = 212530944. Its totient is φ = 33465600.

The previous prime is 85899953. The next prime is 85900013. The reversal of 85899968 is 86999858.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a self number, because there is not a number n which added to its sum of digits gives 85899968.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3788 + ... + 13643.

Almost surely, 2^85899968 is an apocalyptic number.

85899968 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

85899968 is an abundant number, since it is smaller than the sum of its proper divisors (126630976).

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

85899968 is a wasteful number, since it uses less digits than its factorization.

85899968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17461 (or 17451 counting only the distinct ones).

The product of its digits is 11197440, while the sum is 62.

The square root of 85899968 is about 9268.2235622583. The cubic root of 85899968 is about 441.2292896356.

The spelling of 85899968 in words is "eighty-five million, eight hundred ninety-nine thousand, nine hundred sixty-eight".