8721088 has 28 divisors (see below), whose sum is σ = 17713960. Its totient is φ = 4257792.

The previous prime is 8721079. The next prime is 8721101. The reversal of 8721088 is 8801278.

It is an unprimeable number.

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, 1168 + ... + 4336.

Almost surely, 2^8721088 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 8721088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8856980).

8721088 is an abundant number, since it is smaller than the sum of its proper divisors (8992872).

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

8721088 is a wasteful number, since it uses less digits than its factorization.

8721088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3224 (or 3214 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 34.

The square root of 8721088 is about 2953.1488279462. The cubic root of 8721088 is about 205.8370534094.

The spelling of 8721088 in words is "eight million, seven hundred twenty-one thousand, eighty-eight".