85181706 has 48 divisors (see below), whose sum is σ = 195066144. Its totient is φ = 27849744.

The previous prime is 85181689. The next prime is 85181717. The reversal of 85181706 is 60718158.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24105 + ... + 27411.

It is an arithmetic number, because the mean of its divisors is an integer number (4063878).

Almost surely, 2^85181706 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85181706, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97533072).

85181706 is an abundant number, since it is smaller than the sum of its proper divisors (109884438).

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

85181706 is a wasteful number, since it uses less digits than its factorization.

85181706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3377 (or 3365 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 36.

The square root of 85181706 is about 9229.3935878800. The cubic root of 85181706 is about 439.9960502400.

The spelling of 85181706 in words is "eighty-five million, one hundred eighty-one thousand, seven hundred six".