12687950 has 96 divisors (see below), whose sum is σ = 28926720. Its totient is φ = 4083200.

The previous prime is 12687947. The next prime is 12687971. The reversal of 12687950 is 5978621.

It is a Curzon number.

It is a zygodrome in base 5.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 215021 + ... + 215079.

It is an arithmetic number, because the mean of its divisors is an integer number (301320).

Almost surely, 2^12687950 is an apocalyptic number.

12687950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12687950 is an abundant number, since it is smaller than the sum of its proper divisors (16238770).

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

12687950 is a wasteful number, since it uses less digits than its factorization.

12687950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 12687950 is about 3562.0148792502. The cubic root of 12687950 is about 233.2368421894.

The spelling of 12687950 in words is "twelve million, six hundred eighty-seven thousand, nine hundred fifty".