8527989 has 4 divisors (see below), whose sum is σ = 11370656. Its totient is φ = 5685324.

The previous prime is 8527951. The next prime is 8527991. The reversal of 8527989 is 9897258.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-8527989 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 (8527289) 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, 1421329 + ... + 1421334.

It is an arithmetic number, because the mean of its divisors is an integer number (2842664).

Almost surely, 2^8527989 is an apocalyptic number.

It is an amenable number.

8527989 is a deficient number, since it is larger than the sum of its proper divisors (2842667).

8527989 is a wasteful number, since it uses less digits than its factorization.

8527989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2842666.

The product of its digits is 362880, while the sum is 48.

The square root of 8527989 is about 2920.2720763655. The cubic root of 8527989 is about 204.3065125100.

The spelling of 8527989 in words is "eight million, five hundred twenty-seven thousand, nine hundred eighty-nine".