8729564 has 12 divisors (see below), whose sum is σ = 15505224. Its totient is φ = 4299504.

The previous prime is 8729563. The next prime is 8729593. The reversal of 8729564 is 4659278.

8729564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8729563) 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, 16019 + ... + 16554.

It is an arithmetic number, because the mean of its divisors is an integer number (1292102).

Almost surely, 2^8729564 is an apocalyptic number.

It is an amenable number.

8729564 is a deficient number, since it is larger than the sum of its proper divisors (6775660).

8729564 is a wasteful number, since it uses less digits than its factorization.

8729564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32644 (or 32642 counting only the distinct ones).

The product of its digits is 120960, while the sum is 41.

The square root of 8729564 is about 2954.5835577963. The cubic root of 8729564 is about 205.9037159617.

The spelling of 8729564 in words is "eight million, seven hundred twenty-nine thousand, five hundred sixty-four".