12740589 has 12 divisors (see below), whose sum is σ = 18539196. Its totient is φ = 8430912.

The previous prime is 12740587. The next prime is 12740591. The reversal of 12740589 is 98504721.

12740589 is a `hidden beast` number, since 1 + 2 + 74 + 0 + 589 = 666.

It is an interprime number because it is at equal distance from previous prime (12740587) and next prime (12740591).

It can be written as a sum of positive squares in 2 ways, for example, as 8468100 + 4272489 = 2910^2 + 2067^2 .

It is not a de Polignac number, because 12740589 - 2¹ = 12740587 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12740587) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3934 + ... + 6399.

It is an arithmetic number, because the mean of its divisors is an integer number (1544933).

Almost surely, 2^12740589 is an apocalyptic number.

It is an amenable number.

12740589 is a deficient number, since it is larger than the sum of its proper divisors (5798607).

12740589 is a wasteful number, since it uses less digits than its factorization.

12740589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10476 (or 10473 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 12740589 is about 3569.3961674210. The cubic root of 12740589 is about 233.5589434651.

The spelling of 12740589 in words is "twelve million, seven hundred forty thousand, five hundred eighty-nine".