8747072 has 28 divisors (see below), whose sum is σ = 17548860. Its totient is φ = 4325376.

The previous prime is 8747071. The next prime is 8747083. The reversal of 8747072 is 2707478.

It can be written as a sum of positive squares in 2 ways, for example, as 1478656 + 7268416 = 1216^2 + 2696^2 .

It is a super-2 number, since 2×8747072² = 153022537146368, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8747071) 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, 5504 + ... + 6912.

It is an arithmetic number, because the mean of its divisors is an integer number (626745).

Almost surely, 2^8747072 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 8747072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8774430).

8747072 is an abundant number, since it is smaller than the sum of its proper divisors (8801788).

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

8747072 is a wasteful number, since it uses less digits than its factorization.

8747072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1518 (or 1508 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 35.

The square root of 8747072 is about 2957.5449278075. The cubic root of 8747072 is about 206.0412774293.

The spelling of 8747072 in words is "eight million, seven hundred forty-seven thousand, seventy-two".