12039687 has 24 divisors (see below), whose sum is σ = 19588608. Its totient is φ = 7059600.

The previous prime is 12039641. The next prime is 12039701. The reversal of 12039687 is 78693021.

It is not a de Polignac number, because 12039687 - 2⁶ = 12039623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12039607) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1108 + ... + 5030.

It is an arithmetic number, because the mean of its divisors is an integer number (816192).

Almost surely, 2^12039687 is an apocalyptic number.

12039687 is a deficient number, since it is larger than the sum of its proper divisors (7548921).

12039687 is a wasteful number, since it uses less digits than its factorization.

12039687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3971 (or 3968 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 12039687 is about 3469.8252117362. The cubic root of 12039687 is about 229.1949611933.

The spelling of 12039687 in words is "twelve million, thirty-nine thousand, six hundred eighty-seven".