8266986 has 96 divisors (see below), whose sum is σ = 22713600. Its totient is φ = 2159136.

The previous prime is 8266963. The next prime is 8266997. The reversal of 8266986 is 6896628.

Its product of digits (248832) is a multiple of the sum of its prime divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 80211 + ... + 80313.

It is an arithmetic number, because the mean of its divisors is an integer number (236600).

Almost surely, 2^8266986 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8266986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11356800).

8266986 is an abundant number, since it is smaller than the sum of its proper divisors (14446614).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8266986 is a wasteful number, since it uses less digits than its factorization.

8266986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145 (or 128 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 8266986 is about 2875.2366859095. The cubic root of 8266986 is about 202.2005817298.

The spelling of 8266986 in words is "eight million, two hundred sixty-six thousand, nine hundred eighty-six".