85166804 has 24 divisors (see below), whose sum is σ = 158128488. Its totient is φ = 39997440.

The previous prime is 85166803. The next prime is 85166831. The reversal of 85166804 is 40866158.

It can be written as a sum of positive squares in 4 ways, for example, as 490000 + 84676804 = 700^2 + 9202^2 .

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44834 + ... + 46694.

It is an arithmetic number, because the mean of its divisors is an integer number (6588687).

Almost surely, 2^85166804 is an apocalyptic number.

It is an amenable number.

85166804 is a deficient number, since it is larger than the sum of its proper divisors (72961684).

85166804 is a wasteful number, since it uses less digits than its factorization.

85166804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2555 (or 2553 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 85166804 is about 9228.5862405896. The cubic root of 85166804 is about 439.9703905695.

The spelling of 85166804 in words is "eighty-five million, one hundred sixty-six thousand, eight hundred four".