8781072 has 40 divisors (see below), whose sum is σ = 23064000. Its totient is φ = 2878080.

The previous prime is 8781053. The next prime is 8781077. The reversal of 8781072 is 2701878.

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

It is not an unprimeable number, because it can be changed into a prime (8781077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1429 + ... + 4427.

It is an arithmetic number, because the mean of its divisors is an integer number (576600).

Almost surely, 2^8781072 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 8781072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11532000).

8781072 is an abundant number, since it is smaller than the sum of its proper divisors (14282928).

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

8781072 is a wasteful number, since it uses less digits than its factorization.

8781072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3071 (or 3065 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 33.

The square root of 8781072 is about 2963.2873637229. The cubic root of 8781072 is about 206.3078941242.

The spelling of 8781072 in words is "eight million, seven hundred eighty-one thousand, seventy-two".