12609872 has 20 divisors (see below), whose sum is σ = 26653056. Its totient is φ = 5731680.

The previous prime is 12609853. The next prime is 12609881. The reversal of 12609872 is 27890621.

It is a happy number.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35648 + ... + 35999.

Almost surely, 2^12609872 is an apocalyptic number.

It is an amenable number.

12609872 is an abundant number, since it is smaller than the sum of its proper divisors (14043184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12609872 is a wasteful number, since it uses less digits than its factorization.

12609872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71666 (or 71660 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 12609872 is about 3551.0381580603. The cubic root of 12609872 is about 232.7574332804.

The spelling of 12609872 in words is "twelve million, six hundred nine thousand, eight hundred seventy-two".