8729501 has 4 divisors (see below), whose sum is σ = 9523104. Its totient is φ = 7935900.

The previous prime is 8729491. The next prime is 8729543. The reversal of 8729501 is 1059278.

8729501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8729501 - 2¹⁸ = 8467357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8729401) 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, 396785 + ... + 396806.

It is an arithmetic number, because the mean of its divisors is an integer number (2380776).

Almost surely, 2^8729501 is an apocalyptic number.

It is an amenable number.

8729501 is a deficient number, since it is larger than the sum of its proper divisors (793603).

8729501 is a wasteful number, since it uses less digits than its factorization.

8729501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793602.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 8729501 is about 2954.5728963761. The cubic root of 8729501 is about 205.9032206347.

The spelling of 8729501 in words is "eight million, seven hundred twenty-nine thousand, five hundred one".