8728013 has 8 divisors (see below), whose sum is σ = 10000128. Its totient is φ = 7462224.

The previous prime is 8727989. The next prime is 8728037. The reversal of 8728013 is 3108278.

8728013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (8727989) and next prime (8728037).

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

It is not a de Polignac number, because 8728013 - 2⁸ = 8727757 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 (8728073) 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, 1895 + ... + 4587.

It is an arithmetic number, because the mean of its divisors is an integer number (1250016).

Almost surely, 2^8728013 is an apocalyptic number.

It is an amenable number.

8728013 is a deficient number, since it is larger than the sum of its proper divisors (1272115).

8728013 is a wasteful number, since it uses less digits than its factorization.

8728013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3163.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 8728013 is about 2954.3210725986. The cubic root of 8728013 is about 205.8915207906.

The spelling of 8728013 in words is "eight million, seven hundred twenty-eight thousand, thirteen".