12929685 has 8 divisors (see below), whose sum is σ = 20687520. Its totient is φ = 6895824.

The previous prime is 12929629. The next prime is 12929699. The reversal of 12929685 is 58692921.

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

It is not a de Polignac number, because 12929685 - 2⁸ = 12929429 is a prime.

It is a Curzon number.

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 7 ways as a sum of consecutive naturals, for example, 430975 + ... + 431004.

It is an arithmetic number, because the mean of its divisors is an integer number (2585940).

Almost surely, 2^12929685 is an apocalyptic number.

12929685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12929685 is a deficient number, since it is larger than the sum of its proper divisors (7757835).

12929685 is an equidigital number, since it uses as much as digits as its factorization.

12929685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861987.

The product of its digits is 77760, while the sum is 42.

The square root of 12929685 is about 3595.7871182816. The cubic root of 12929685 is about 234.7087685504.

The spelling of 12929685 in words is "twelve million, nine hundred twenty-nine thousand, six hundred eighty-five".