8712559 has 4 divisors (see below), whose sum is σ = 8718840. Its totient is φ = 8706280.

The previous prime is 8712547. The next prime is 8712577. The reversal of 8712559 is 9552178.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 8712559 - 2¹⁵ = 8679791 is a prime.

It is a Duffinian number.

8712559 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8712059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37 + ... + 4174.

It is an arithmetic number, because the mean of its divisors is an integer number (2179710).

Almost surely, 2^8712559 is an apocalyptic number.

8712559 is a deficient number, since it is larger than the sum of its proper divisors (6281).

8712559 is a wasteful number, since it uses less digits than its factorization.

8712559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6280.

The product of its digits is 25200, while the sum is 37.

The square root of 8712559 is about 2951.7044228716. The cubic root of 8712559 is about 205.7699304065.

The spelling of 8712559 in words is "eight million, seven hundred twelve thousand, five hundred fifty-nine".