85166843 has 8 divisors (see below), whose sum is σ = 86819040. Its totient is φ = 83527360.

The previous prime is 85166833. The next prime is 85166863. The reversal of 85166843 is 34866158.

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

It is a cyclic number.

It is not a de Polignac number, because 85166843 - 2¹⁶ = 85101307 is a prime.

It is a super-2 number, since 2×85166843² = 14506782293173298, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85166843.

It is not an unprimeable number, because it can be changed into a prime (85166803) 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, 10943 + ... + 17031.

It is an arithmetic number, because the mean of its divisors is an integer number (10852380).

Almost surely, 2^85166843 is an apocalyptic number.

85166843 is a deficient number, since it is larger than the sum of its proper divisors (1652197).

85166843 is a wasteful number, since it uses less digits than its factorization.

85166843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6357.

The product of its digits is 138240, while the sum is 41.

The square root of 85166843 is about 9228.5883535891. The cubic root of 85166843 is about 439.9704577273.

The spelling of 85166843 in words is "eighty-five million, one hundred sixty-six thousand, eight hundred forty-three".