85808668 has 24 divisors (see below), whose sum is σ = 165078144. Its totient is φ = 38703600.

The previous prime is 85808659. The next prime is 85808687. The reversal of 85808668 is 86680858.

It is a congruent number.

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, 1680 + ... + 13207.

It is an arithmetic number, because the mean of its divisors is an integer number (6878256).

Almost surely, 2^85808668 is an apocalyptic number.

It is an amenable number.

85808668 is a deficient number, since it is larger than the sum of its proper divisors (79269476).

85808668 is a wasteful number, since it uses less digits than its factorization.

85808668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15033 (or 15031 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 49.

The square root of 85808668 is about 9263.2968213266. The cubic root of 85808668 is about 441.0729119491.

The spelling of 85808668 in words is "eighty-five million, eight hundred eight thousand, six hundred sixty-eight".