12656089 has 8 divisors (see below), whose sum is σ = 12912480. Its totient is φ = 12402336.

The previous prime is 12656087. The next prime is 12656101. The reversal of 12656089 is 98065621.

12656089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12656089 - 2¹ = 12656087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12656081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10989 + ... + 12085.

It is an arithmetic number, because the mean of its divisors is an integer number (1614060).

Almost surely, 2^12656089 is an apocalyptic number.

It is an amenable number.

12656089 is a deficient number, since it is larger than the sum of its proper divisors (256391).

12656089 is a wasteful number, since it uses less digits than its factorization.

12656089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1319.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 12656089 is about 3557.5397397640. The cubic root of 12656089 is about 233.0414497657.

The spelling of 12656089 in words is "twelve million, six hundred fifty-six thousand, eighty-nine".