852166689 has 32 divisors (see below), whose sum is σ = 1257984000. Its totient is φ = 508824960.

The previous prime is 852166661. The next prime is 852166697. The reversal of 852166689 is 986661258.

It is not a de Polignac number, because 852166689 - 2⁹ = 852166177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (852166639) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 811837 + ... + 812885.

It is an arithmetic number, because the mean of its divisors is an integer number (39312000).

Almost surely, 2^852166689 is an apocalyptic number.

It is an amenable number.

852166689 is a deficient number, since it is larger than the sum of its proper divisors (405817311).

852166689 is a wasteful number, since it uses less digits than its factorization.

852166689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1405.

The product of its digits is 1244160, while the sum is 51.

The square root of 852166689 is about 29191.8942345302. The cubic root of 852166689 is about 948.0724309967.

The spelling of 852166689 in words is "eight hundred fifty-two million, one hundred sixty-six thousand, six hundred eighty-nine".