8864729 has 8 divisors (see below), whose sum is σ = 9549312. Its totient is φ = 8205120.

The previous prime is 8864663. The next prime is 8864731. The reversal of 8864729 is 9274688.

8864729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8864729 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8864729.

It is not an unprimeable number, because it can be changed into a prime (8864759) 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, 5504 + ... + 6929.

It is an arithmetic number, because the mean of its divisors is an integer number (1193664).

Almost surely, 2^8864729 is an apocalyptic number.

It is an amenable number.

8864729 is a deficient number, since it is larger than the sum of its proper divisors (684583).

8864729 is a wasteful number, since it uses less digits than its factorization.

8864729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12487.

The product of its digits is 193536, while the sum is 44.

The square root of 8864729 is about 2977.3694765682. The cubic root of 8864729 is about 206.9609874591.

The spelling of 8864729 in words is "eight million, eight hundred sixty-four thousand, seven hundred twenty-nine".