12729734 has 8 divisors (see below), whose sum is σ = 20099640. Its totient is φ = 6029856.

The previous prime is 12729727. The next prime is 12729779. The reversal of 12729734 is 43792721.

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

It is a super-2 number, since 2×12729734² = 324092255421512, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12729694 and 12729703.

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 3 ways as a sum of consecutive naturals, for example, 167459 + ... + 167534.

It is an arithmetic number, because the mean of its divisors is an integer number (2512455).

Almost surely, 2^12729734 is an apocalyptic number.

12729734 is a deficient number, since it is larger than the sum of its proper divisors (7369906).

12729734 is a wasteful number, since it uses less digits than its factorization.

12729734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335014.

The product of its digits is 21168, while the sum is 35.

The square root of 12729734 is about 3567.8752780892. The cubic root of 12729734 is about 233.4925937672.

The spelling of 12729734 in words is "twelve million, seven hundred twenty-nine thousand, seven hundred thirty-four".