12686330 has 8 divisors (see below), whose sum is σ = 22835412. Its totient is φ = 5074528.

The previous prime is 12686329. The next prime is 12686341. The reversal of 12686330 is 3368621.

It can be written as a sum of positive squares in 2 ways, for example, as 12609601 + 76729 = 3551^2 + 277^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12686293 and 12686302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 634307 + ... + 634326.

Almost surely, 2^12686330 is an apocalyptic number.

12686330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12686330 is a deficient number, since it is larger than the sum of its proper divisors (10149082).

12686330 is a wasteful number, since it uses less digits than its factorization.

12686330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1268640.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 12686330 is about 3561.7874726042. The cubic root of 12686330 is about 233.2269151913.

The spelling of 12686330 in words is "twelve million, six hundred eighty-six thousand, three hundred thirty".