85668280 has 16 divisors (see below), whose sum is σ = 192753720. Its totient is φ = 34267296.

The previous prime is 85668269. The next prime is 85668337. The reversal of 85668280 is 8286658.

It is a happy number.

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 3 ways as a sum of consecutive naturals, for example, 1070814 + ... + 1070893.

Almost surely, 2^85668280 is an apocalyptic number.

It is an amenable number.

85668280 is an abundant number, since it is smaller than the sum of its proper divisors (107085440).

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

85668280 is a wasteful number, since it uses less digits than its factorization.

85668280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2141718 (or 2141714 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 43.

The square root of 85668280 is about 9255.7160717040. The cubic root of 85668280 is about 440.8322402893.

The spelling of 85668280 in words is "eighty-five million, six hundred sixty-eight thousand, two hundred eighty".