85685080 has 64 divisors (see below), whose sum is σ = 212738400. Its totient is φ = 30858240.

The previous prime is 85685069. The next prime is 85685099. The reversal of 85685080 is 8058658.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19311 + ... + 23329.

Almost surely, 2^85685080 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 85685080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106369200).

85685080 is an abundant number, since it is smaller than the sum of its proper divisors (127053320).

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

85685080 is a wasteful number, since it uses less digits than its factorization.

85685080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4084 (or 4080 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 40.

The square root of 85685080 is about 9256.6235745006. The cubic root of 85685080 is about 440.8610549123.

The spelling of 85685080 in words is "eighty-five million, six hundred eighty-five thousand, eighty".