12729774 has 16 divisors (see below), whose sum is σ = 25510608. Its totient is φ = 4234752.

The previous prime is 12729727. The next prime is 12729779. The reversal of 12729774 is 47792721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12729779) 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, 1624 + ... + 5300.

It is an arithmetic number, because the mean of its divisors is an integer number (1594413).

Almost surely, 2^12729774 is an apocalyptic number.

12729774 is an abundant number, since it is smaller than the sum of its proper divisors (12780834).

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

12729774 is a wasteful number, since it uses less digits than its factorization.

12729774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4259.

The product of its digits is 49392, while the sum is 39.

The square root of 12729774 is about 3567.8808836619. The cubic root of 12729774 is about 233.4928383310.

The spelling of 12729774 in words is "twelve million, seven hundred twenty-nine thousand, seven hundred seventy-four".