12738927 has 16 divisors (see below), whose sum is σ = 17482752. Its totient is φ = 8246880.

The previous prime is 12738919. The next prime is 12738959. The reversal of 12738927 is 72983721.

12738927 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12738927 - 2³ = 12738919 is a prime.

It is a super-4 number, since 4×12738927⁴ (a number of 30 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12738977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23277 + ... + 23817.

It is an arithmetic number, because the mean of its divisors is an integer number (1092672).

Almost surely, 2^12738927 is an apocalyptic number.

12738927 is a deficient number, since it is larger than the sum of its proper divisors (4743825).

12738927 is a wasteful number, since it uses less digits than its factorization.

12738927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758.

The product of its digits is 42336, while the sum is 39.

The square root of 12738927 is about 3569.1633473407. The cubic root of 12738927 is about 233.5487871622.

The spelling of 12738927 in words is "twelve million, seven hundred thirty-eight thousand, nine hundred twenty-seven".