8728727 has 4 divisors (see below), whose sum is σ = 9975696. Its totient is φ = 7481760.

The previous prime is 8728721. The next prime is 8728757. The reversal of 8728727 is 7278278.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8728727 - 2⁴ = 8728711 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 (8728721) 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, 623474 + ... + 623487.

It is an arithmetic number, because the mean of its divisors is an integer number (2493924).

Almost surely, 2^8728727 is an apocalyptic number.

8728727 is a deficient number, since it is larger than the sum of its proper divisors (1246969).

8728727 is a wasteful number, since it uses less digits than its factorization.

8728727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1246968.

The product of its digits is 87808, while the sum is 41.

The square root of 8728727 is about 2954.4419100737. The cubic root of 8728727 is about 205.8971349947.

The spelling of 8728727 in words is "eight million, seven hundred twenty-eight thousand, seven hundred twenty-seven".