8666744 has 16 divisors (see below), whose sum is σ = 16647120. Its totient is φ = 4227520.

The previous prime is 8666711. The next prime is 8666747. The reversal of 8666744 is 4476668.

It is a super-2 number, since 2×8666744² = 150224903123072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8666747) 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 3 ways as a sum of consecutive naturals, for example, 12884 + ... + 13539.

It is an arithmetic number, because the mean of its divisors is an integer number (1040445).

Almost surely, 2^8666744 is an apocalyptic number.

It is an amenable number.

8666744 is a deficient number, since it is larger than the sum of its proper divisors (7980376).

8666744 is a wasteful number, since it uses less digits than its factorization.

8666744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26470 (or 26466 counting only the distinct ones).

The product of its digits is 193536, while the sum is 41.

The square root of 8666744 is about 2943.9334231602. The cubic root of 8666744 is about 205.4086158803.

The spelling of 8666744 in words is "eight million, six hundred sixty-six thousand, seven hundred forty-four".