85321678 has 12 divisors (see below), whose sum is σ = 138585168. Its totient is φ = 39379080.

The previous prime is 85321673. The next prime is 85321681. The reversal of 85321678 is 87612358.

It is a self number, because there is not a number n which added to its sum of digits gives 85321678.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85321673) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 125878 + ... + 126553.

It is an arithmetic number, because the mean of its divisors is an integer number (11548764).

Almost surely, 2^85321678 is an apocalyptic number.

85321678 is a deficient number, since it is larger than the sum of its proper divisors (53263490).

85321678 is a wasteful number, since it uses less digits than its factorization.

85321678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252459 (or 252446 counting only the distinct ones).

The product of its digits is 80640, while the sum is 40.

The square root of 85321678 is about 9236.9734220685. The cubic root of 85321678 is about 440.2369213031.

The spelling of 85321678 in words is "eighty-five million, three hundred twenty-one thousand, six hundred seventy-eight".