8166724 has 6 divisors (see below), whose sum is σ = 14291774. Its totient is φ = 4083360.

The previous prime is 8166659. The next prime is 8166727. The reversal of 8166724 is 4276618.

It can be written as a sum of positive squares in only one way, i.e., 8065600 + 101124 = 2840^2 + 318^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 8166724.

It is not an unprimeable number, because it can be changed into a prime (8166727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1020837 + ... + 1020844.

Almost surely, 2^8166724 is an apocalyptic number.

It is an amenable number.

8166724 is a deficient number, since it is larger than the sum of its proper divisors (6125050).

8166724 is a wasteful number, since it uses less digits than its factorization.

8166724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2041685 (or 2041683 counting only the distinct ones).

The product of its digits is 16128, while the sum is 34.

The square root of 8166724 is about 2857.7480644731. The cubic root of 8166724 is about 201.3798251867.

The spelling of 8166724 in words is "eight million, one hundred sixty-six thousand, seven hundred twenty-four".