85166806 has 8 divisors (see below), whose sum is σ = 127985400. Its totient is φ = 42505008.

The previous prime is 85166803. The next prime is 85166831. The reversal of 85166806 is 60866158.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85166801) 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 3 ways as a sum of consecutive naturals, for example, 37831 + ... + 40018.

It is an arithmetic number, because the mean of its divisors is an integer number (15998175).

Almost surely, 2^85166806 is an apocalyptic number.

85166806 is a deficient number, since it is larger than the sum of its proper divisors (42818594).

85166806 is a wasteful number, since it uses less digits than its factorization.

85166806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78398.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 85166806 is about 9228.5863489486. The cubic root of 85166806 is about 439.9703940135.

The spelling of 85166806 in words is "eighty-five million, one hundred sixty-six thousand, eight hundred six".