8691066 has 12 divisors (see below), whose sum is σ = 18830682. Its totient is φ = 2897016.

The previous prime is 8691043. The next prime is 8691091. The reversal of 8691066 is 6601968.

8691066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 6395841 + 2295225 = 2529^2 + 1515^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 8691066.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 241401 + ... + 241436.

Almost surely, 2^8691066 is an apocalyptic number.

8691066 is an abundant number, since it is smaller than the sum of its proper divisors (10139616).

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

8691066 is a wasteful number, since it uses less digits than its factorization.

8691066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482845 (or 482842 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 8691066 is about 2948.0613969183. The cubic root of 8691066 is about 205.6005865578.

The spelling of 8691066 in words is "eight million, six hundred ninety-one thousand, sixty-six".