8987539 has 4 divisors (see below), whose sum is σ = 9804600. Its totient is φ = 8170480.

The previous prime is 8987527. The next prime is 8987567. The reversal of 8987539 is 9357898.

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 8987539 - 2⁵ = 8987507 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8987492 and 8987501.

It is not an unprimeable number, because it can be changed into a prime (8987519) 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, 408514 + ... + 408535.

It is an arithmetic number, because the mean of its divisors is an integer number (2451150).

Almost surely, 2^8987539 is an apocalyptic number.

8987539 is a deficient number, since it is larger than the sum of its proper divisors (817061).

8987539 is a wasteful number, since it uses less digits than its factorization.

8987539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817060.

The product of its digits is 544320, while the sum is 49.

The square root of 8987539 is about 2997.9224472958. The cubic root of 8987539 is about 207.9123382450.

The spelling of 8987539 in words is "eight million, nine hundred eighty-seven thousand, five hundred thirty-nine".