12738782 has 16 divisors (see below), whose sum is σ = 22371552. Its totient is φ = 5326080.

The previous prime is 12738779. The next prime is 12738811. The reversal of 12738782 is 28783721.

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, 10523 + ... + 11670.

It is an arithmetic number, because the mean of its divisors is an integer number (1398222).

Almost surely, 2^12738782 is an apocalyptic number.

12738782 is a deficient number, since it is larger than the sum of its proper divisors (9632770).

12738782 is a wasteful number, since it uses less digits than its factorization.

12738782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22243.

The product of its digits is 37632, while the sum is 38.

The square root of 12738782 is about 3569.1430343992. The cubic root of 12738782 is about 233.5479010409.

The spelling of 12738782 in words is "twelve million, seven hundred thirty-eight thousand, seven hundred eighty-two".