8366724 has 18 divisors (see below), whose sum is σ = 21149310. Its totient is φ = 2788896.

The previous prime is 8366723. The next prime is 8366741. The reversal of 8366724 is 4276638.

It can be written as a sum of positive squares in only one way, i.e., 6969600 + 1397124 = 2640^2 + 1182^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 232409 = 8366724 / (8 + 3 + 6 + 6 + 7 + 2 + 4).

It is an Ulam number.

It is a d-powerful number, because it can be written as 8 + 3¹¹ + 6⁶ + 6⁷ + 7⁸ + 2²¹ + 4⁵ .

It is not an unprimeable number, because it can be changed into a prime (8366723) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 116169 + ... + 116240.

Almost surely, 2^8366724 is an apocalyptic number.

It is an amenable number.

8366724 is an abundant number, since it is smaller than the sum of its proper divisors (12782586).

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

8366724 is a wasteful number, since it uses less digits than its factorization.

8366724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232419 (or 232414 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 8366724 is about 2892.5289972617. The cubic root of 8366724 is about 203.0104906936.

The spelling of 8366724 in words is "eight million, three hundred sixty-six thousand, seven hundred twenty-four".