85966171 has 8 divisors (see below), whose sum is σ = 87174864. Its totient is φ = 84761760.

The previous prime is 85966147. The next prime is 85966183. The reversal of 85966171 is 17166958.

It is a happy number.

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 85966171 - 2¹³ = 85957979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85976171) 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, 72201 + ... + 73381.

It is an arithmetic number, because the mean of its divisors is an integer number (10896858).

Almost surely, 2^85966171 is an apocalyptic number.

85966171 is a deficient number, since it is larger than the sum of its proper divisors (1208693).

85966171 is a wasteful number, since it uses less digits than its factorization.

85966171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2141.

The product of its digits is 90720, while the sum is 43.

The square root of 85966171 is about 9271.7943786518. The cubic root of 85966171 is about 441.3426121523.

The spelling of 85966171 in words is "eighty-five million, nine hundred sixty-six thousand, one hundred seventy-one".