12686973 has 8 divisors (see below), whose sum is σ = 18217248. Its totient is φ = 7807344.

The previous prime is 12686969. The next prime is 12686977. The reversal of 12686973 is 37968621.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12686969) and next prime (12686977).

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

It is not a de Polignac number, because 12686973 - 2² = 12686969 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12686977) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 162615 + ... + 162692.

It is an arithmetic number, because the mean of its divisors is an integer number (2277156).

Almost surely, 2^12686973 is an apocalyptic number.

12686973 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12686973 is a deficient number, since it is larger than the sum of its proper divisors (5530275).

12686973 is a wasteful number, since it uses less digits than its factorization.

12686973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325323.

The product of its digits is 108864, while the sum is 42.

The square root of 12686973 is about 3561.8777351279. The cubic root of 12686973 is about 233.2308554527.

The spelling of 12686973 in words is "twelve million, six hundred eighty-six thousand, nine hundred seventy-three".