12887589 has 24 divisors (see below), whose sum is σ = 20347936. Its totient is φ = 7207200.

The previous prime is 12887587. The next prime is 12887591. The reversal of 12887589 is 98578821.

It is an interprime number because it is at equal distance from previous prime (12887587) and next prime (12887591).

It is not a de Polignac number, because 12887589 - 2¹ = 12887587 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 (12887587) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3354 + ... + 6084.

Almost surely, 2^12887589 is an apocalyptic number.

It is an amenable number.

12887589 is a deficient number, since it is larger than the sum of its proper divisors (7460347).

12887589 is a wasteful number, since it uses less digits than its factorization.

12887589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2769 (or 2758 counting only the distinct ones).

The product of its digits is 322560, while the sum is 48.

The square root of 12887589 is about 3589.9288293781. The cubic root of 12887589 is about 234.4537728461.

The spelling of 12887589 in words is "twelve million, eight hundred eighty-seven thousand, five hundred eighty-nine".