85011784 has 32 divisors (see below), whose sum is σ = 187266240. Its totient is φ = 35668800.

The previous prime is 85011769. The next prime is 85011791. The reversal of 85011784 is 48711058.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36012 + ... + 38299.

It is an arithmetic number, because the mean of its divisors is an integer number (5852070).

Almost surely, 2^85011784 is an apocalyptic number.

It is an amenable number.

85011784 is an abundant number, since it is smaller than the sum of its proper divisors (102254456).

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

85011784 is a wasteful number, since it uses less digits than its factorization.

85011784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74341 (or 74337 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 34.

The square root of 85011784 is about 9220.1835122735. The cubic root of 85011784 is about 439.7032848028.

The spelling of 85011784 in words is "eighty-five million, eleven thousand, seven hundred eighty-four".