10166689 has 4 divisors (see below), whose sum is σ = 10948756. Its totient is φ = 9384624.

The previous prime is 10166677. The next prime is 10166693. The reversal of 10166689 is 98666101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1016064 + 9150625 = 1008^2 + 3025^2 .

It is a cyclic number.

It is not a de Polignac number, because 10166689 - 2⁵ = 10166657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10166609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 391014 + ... + 391039.

It is an arithmetic number, because the mean of its divisors is an integer number (2737189).

Almost surely, 2^10166689 is an apocalyptic number.

It is an amenable number.

10166689 is a deficient number, since it is larger than the sum of its proper divisors (782067).

10166689 is an equidigital number, since it uses as much as digits as its factorization.

10166689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782066.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 10166689 is about 3188.5245804290. The cubic root of 10166689 is about 216.6339471959.

The spelling of 10166689 in words is "ten million, one hundred sixty-six thousand, six hundred eighty-nine".