85042860 has 96 divisors (see below), whose sum is σ = 286487040. Its totient is φ = 18413568.

The previous prime is 85042847. The next prime is 85042871. The reversal of 85042860 is 6824058.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2652 + ... + 13308.

It is an arithmetic number, because the mean of its divisors is an integer number (2984240).

Almost surely, 2^85042860 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 85042860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143243520).

85042860 is an abundant number, since it is smaller than the sum of its proper divisors (201444180).

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

85042860 is a wasteful number, since it uses less digits than its factorization.

85042860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10695 (or 10693 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 85042860 is about 9221.8685742099. The cubic root of 85042860 is about 439.7568560215.

The spelling of 85042860 in words is "eighty-five million, forty-two thousand, eight hundred sixty".