85078188 has 72 divisors (see below), whose sum is σ = 240215248. Its totient is φ = 26174016.

The previous prime is 85078187. The next prime is 85078223. The reversal of 85078188 is 88187058.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85078187) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9270 + ... + 16002.

Almost surely, 2^85078188 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85078188, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120107624).

85078188 is an abundant number, since it is smaller than the sum of its proper divisors (155137060).

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

85078188 is a wasteful number, since it uses less digits than its factorization.

85078188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6765 (or 6751 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 45.

The square root of 85078188 is about 9223.7838222716. The cubic root of 85078188 is about 439.8177413189.

The spelling of 85078188 in words is "eighty-five million, seventy-eight thousand, one hundred eighty-eight".