12679887 has 16 divisors (see below), whose sum is σ = 18748800. Its totient is φ = 7557600.

The previous prime is 12679871. The next prime is 12679903. The reversal of 12679887 is 78897621.

It is an interprime number because it is at equal distance from previous prime (12679871) and next prime (12679903).

It is not a de Polignac number, because 12679887 - 2⁴ = 12679871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12679847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1137 + ... + 5162.

It is an arithmetic number, because the mean of its divisors is an integer number (1171800).

Almost surely, 2^12679887 is an apocalyptic number.

12679887 is a deficient number, since it is larger than the sum of its proper divisors (6068913).

12679887 is a wasteful number, since it uses less digits than its factorization.

12679887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6374.

The product of its digits is 338688, while the sum is 48.

The square root of 12679887 is about 3560.8828961369. The cubic root of 12679887 is about 233.1874255602.

The spelling of 12679887 in words is "twelve million, six hundred seventy-nine thousand, eight hundred eighty-seven".