12689677 has 24 divisors (see below), whose sum is σ = 17351712. Its totient is φ = 9122400.

The previous prime is 12689669. The next prime is 12689681. The reversal of 12689677 is 77698621.

It is a happy number.

It is not a de Polignac number, because 12689677 - 2³ = 12689669 is a prime.

It is a super-2 number, since 2×12689677² = 322055804728658, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12689627) 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, 6102 + ... + 7912.

It is an arithmetic number, because the mean of its divisors is an integer number (722988).

Almost surely, 2^12689677 is an apocalyptic number.

It is an amenable number.

12689677 is a deficient number, since it is larger than the sum of its proper divisors (4662035).

12689677 is a wasteful number, since it uses less digits than its factorization.

12689677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1849 (or 1842 counting only the distinct ones).

The product of its digits is 254016, while the sum is 46.

The square root of 12689677 is about 3562.2572899778. The cubic root of 12689677 is about 233.2474239290.

It can be divided in two parts, 12689 and 677, that added together give a triangular number (13366 = T₁₆₃).

The spelling of 12689677 in words is "twelve million, six hundred eighty-nine thousand, six hundred seventy-seven".