8664424 has 16 divisors (see below), whose sum is σ = 17201700. Its totient is φ = 4077312.

The previous prime is 8664421. The next prime is 8664427. The reversal of 8664424 is 4244668.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8664421) and next prime (8664427).

It can be written as a sum of positive squares in 2 ways, for example, as 8584900 + 79524 = 2930^2 + 282^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a self number, because there is not a number n which added to its sum of digits gives 8664424.

It is not an unprimeable number, because it can be changed into a prime (8664421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31719 + ... + 31990.

Almost surely, 2^8664424 is an apocalyptic number.

It is an amenable number.

8664424 is a deficient number, since it is larger than the sum of its proper divisors (8537276).

8664424 is a wasteful number, since it uses less digits than its factorization.

8664424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63732 (or 63728 counting only the distinct ones).

The product of its digits is 36864, while the sum is 34.

The square root of 8664424 is about 2943.5393661373. The cubic root of 8664424 is about 205.3902856393.

It can be divided in two parts, 86644 and 24, that added together give a palindrome (86668).

The spelling of 8664424 in words is "eight million, six hundred sixty-four thousand, four hundred twenty-four".