8728071 has 8 divisors (see below), whose sum is σ = 12695424. Its totient is φ = 5289720.

The previous prime is 8728037. The next prime is 8728073. The reversal of 8728071 is 1708278.

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

It is not a de Polignac number, because 8728071 - 2¹⁵ = 8695303 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 264487 = 8728071 / (8 + 7 + 2 + 8 + 0 + 7 + 1).

8728071 is a lucky 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, 132211 + ... + 132276.

It is an arithmetic number, because the mean of its divisors is an integer number (1586928).

Almost surely, 2^8728071 is an apocalyptic number.

8728071 is a deficient number, since it is larger than the sum of its proper divisors (3967353).

8728071 is a wasteful number, since it uses less digits than its factorization.

8728071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264501.

The product of its (nonzero) digits is 6272, while the sum is 33.

The square root of 8728071 is about 2954.3308887124. The cubic root of 8728071 is about 205.8919768578.

The spelling of 8728071 in words is "eight million, seven hundred twenty-eight thousand, seventy-one".