12609869 has 8 divisors (see below), whose sum is σ = 13552128. Its totient is φ = 11689920.

The previous prime is 12609853. The next prime is 12609881. The reversal of 12609869 is 96890621.

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 12609869 - 2⁴ = 12609853 is a prime.

It is a super-2 number, since 2×12609869² = 318017592394322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12609829) 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, 4397 + ... + 6674.

It is an arithmetic number, because the mean of its divisors is an integer number (1694016).

Almost surely, 2^12609869 is an apocalyptic number.

It is an amenable number.

12609869 is a deficient number, since it is larger than the sum of its proper divisors (942259).

12609869 is a wasteful number, since it uses less digits than its factorization.

12609869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11155.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 12609869 is about 3551.0377356486. The cubic root of 12609869 is about 232.7574148221.

The spelling of 12609869 in words is "twelve million, six hundred nine thousand, eight hundred sixty-nine".