8722724 has 6 divisors (see below), whose sum is σ = 15264774. Its totient is φ = 4361360.

The previous prime is 8722711. The next prime is 8722739. The reversal of 8722724 is 4272278.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7661824 + 1060900 = 2768^2 + 1030^2 .

It is a d-powerful number, because it can be written as 8³ + 7⁶ + 2 + 2¹⁵ + 7⁶ + 2²³ + 4⁸ .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1090337 + ... + 1090344.

It is an arithmetic number, because the mean of its divisors is an integer number (2544129).

Almost surely, 2^8722724 is an apocalyptic number.

It is an amenable number.

8722724 is a deficient number, since it is larger than the sum of its proper divisors (6542050).

8722724 is a wasteful number, since it uses less digits than its factorization.

8722724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2180685 (or 2180683 counting only the distinct ones).

The product of its digits is 12544, while the sum is 32.

The square root of 8722724 is about 2953.4258074311. The cubic root of 8722724 is about 205.8499236829.

The spelling of 8722724 in words is "eight million, seven hundred twenty-two thousand, seven hundred twenty-four".