8488729 has 8 divisors (see below), whose sum is σ = 9025128. Its totient is φ = 7956480.

The previous prime is 8488721. The next prime is 8488751. The reversal of 8488729 is 9278848.

8488729 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2975625 + 5513104 = 1725^2 + 2348^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8488729 - 2³ = 8488721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8488721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3889 + ... + 5665.

It is an arithmetic number, because the mean of its divisors is an integer number (1128141).

Almost surely, 2^8488729 is an apocalyptic number.

It is an amenable number.

8488729 is a deficient number, since it is larger than the sum of its proper divisors (536399).

8488729 is a wasteful number, since it uses less digits than its factorization.

8488729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2075.

The product of its digits is 258048, while the sum is 46.

The square root of 8488729 is about 2913.5423456679. The cubic root of 8488729 is about 203.9925106183.

The spelling of 8488729 in words is "eight million, four hundred eighty-eight thousand, seven hundred twenty-nine".