8722624 has 28 divisors (see below), whose sum is σ = 17555464. Its totient is φ = 4299264.

The previous prime is 8722621. The next prime is 8722631. The reversal of 8722624 is 4262278.

It is not an unprimeable number, because it can be changed into a prime (8722621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3739 + ... + 5605.

Almost surely, 2^8722624 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8722624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8777732).

8722624 is an abundant number, since it is smaller than the sum of its proper divisors (8832840).

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

8722624 is a wasteful number, since it uses less digits than its factorization.

8722624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1952 (or 1942 counting only the distinct ones).

The product of its digits is 10752, while the sum is 31.

The square root of 8722624 is about 2953.4088778901. The cubic root of 8722624 is about 205.8491370376.

The spelling of 8722624 in words is "eight million, seven hundred twenty-two thousand, six hundred twenty-four".