12589749 has 20 divisors (see below), whose sum is σ = 19212864. Its totient is φ = 8212104.

The previous prime is 12589721. The next prime is 12589783. The reversal of 12589749 is 94798521.

It is not a de Polignac number, because 12589749 - 2⁹ = 12589237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12589789) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2154 + ... + 5460.

Almost surely, 2^12589749 is an apocalyptic number.

It is an amenable number.

12589749 is a deficient number, since it is larger than the sum of its proper divisors (6623115).

12589749 is an equidigital number, since it uses as much as digits as its factorization.

12589749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3366 (or 3357 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 12589749 is about 3548.2036300077. The cubic root of 12589749 is about 232.6335549011.

The spelling of 12589749 in words is "twelve million, five hundred eighty-nine thousand, seven hundred forty-nine".