12509672 has 32 divisors (see below), whose sum is σ = 27734400. Its totient is φ = 5175744.

The previous prime is 12509641. The next prime is 12509683. The reversal of 12509672 is 27690521.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2228 + ... + 5475.

It is an arithmetic number, because the mean of its divisors is an integer number (866700).

Almost surely, 2^12509672 is an apocalyptic number.

It is an amenable number.

12509672 is an abundant number, since it is smaller than the sum of its proper divisors (15224728).

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

12509672 is a wasteful number, since it uses less digits than its factorization.

12509672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7745 (or 7741 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 12509672 is about 3536.9014688001. The cubic root of 12509672 is about 232.1392841783.

It can be divided in two parts, 12509 and 672, that multiplied together give a palindrome (8406048).

The spelling of 12509672 in words is "twelve million, five hundred nine thousand, six hundred seventy-two".