85569330 has 128 divisors (see below), whose sum is σ = 271226880. Its totient is φ = 16727040.

The previous prime is 85569329. The next prime is 85569371. The reversal of 85569330 is 3396558.

It is a super-2 number, since 2×85569330² = 14644220473297800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 38181 + ... + 40359.

It is an arithmetic number, because the mean of its divisors is an integer number (2118960).

Almost surely, 2^85569330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85569330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135613440).

85569330 is an abundant number, since it is smaller than the sum of its proper divisors (185657550).

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

85569330 is a wasteful number, since it uses less digits than its factorization.

85569330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2224.

The product of its (nonzero) digits is 97200, while the sum is 39.

The square root of 85569330 is about 9250.3691818219. The cubic root of 85569330 is about 440.6624491082.

The spelling of 85569330 in words is "eighty-five million, five hundred sixty-nine thousand, three hundred thirty".