85539786 has 32 divisors (see below), whose sum is σ = 181431360. Its totient is φ = 26810496.

The previous prime is 85539761. The next prime is 85539791. The reversal of 85539786 is 68793558.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12880 + ... + 18356.

It is an arithmetic number, because the mean of its divisors is an integer number (5669730).

Almost surely, 2^85539786 is an apocalyptic number.

85539786 is an abundant number, since it is smaller than the sum of its proper divisors (95891574).

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

85539786 is a wasteful number, since it uses less digits than its factorization.

85539786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5638.

The product of its digits is 1814400, while the sum is 51.

The square root of 85539786 is about 9248.7721347215. The cubic root of 85539786 is about 440.6117283262.

The spelling of 85539786 in words is "eighty-five million, five hundred thirty-nine thousand, seven hundred eighty-six".