85108980 has 144 divisors (see below), whose sum is σ = 276171840. Its totient is φ = 19514880.

The previous prime is 85108973. The next prime is 85109023. The reversal of 85108980 is 8980158.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 137632 + ... + 138248.

It is an arithmetic number, because the mean of its divisors is an integer number (1917860).

Almost surely, 2^85108980 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 85108980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138085920).

85108980 is an abundant number, since it is smaller than the sum of its proper divisors (191062860).

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

85108980 is a wasteful number, since it uses less digits than its factorization.

85108980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670 (or 657 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 39.

The square root of 85108980 is about 9225.4528344141. The cubic root of 85108980 is about 439.8707953965.

The spelling of 85108980 in words is "eighty-five million, one hundred eight thousand, nine hundred eighty".