85310880 has 96 divisors (see below), whose sum is σ = 270273024. Its totient is φ = 22619136.

The previous prime is 85310857. The next prime is 85310881. The reversal of 85310880 is 8801358.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (85310881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106642 + ... + 107438.

It is an arithmetic number, because the mean of its divisors is an integer number (2815344).

Almost surely, 2^85310880 is an apocalyptic number.

85310880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85310880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135136512).

85310880 is an abundant number, since it is smaller than the sum of its proper divisors (184962144).

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

85310880 is a wasteful number, since it uses less digits than its factorization.

85310880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038 (or 1030 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 85310880 is about 9236.3889047614. The cubic root of 85310880 is about 440.2183489272.

The spelling of 85310880 in words is "eighty-five million, three hundred ten thousand, eight hundred eighty".