12728793 has 16 divisors (see below), whose sum is σ = 21159936. Its totient is φ = 6612240.

The previous prime is 12728773. The next prime is 12728831. The reversal of 12728793 is 39782721.

12728793 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 12728793 - 2⁹ = 12728281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12728713) 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, 27321 + ... + 27782.

It is an arithmetic number, because the mean of its divisors is an integer number (1322496).

Almost surely, 2^12728793 is an apocalyptic number.

It is an amenable number.

12728793 is a deficient number, since it is larger than the sum of its proper divisors (8431143).

12728793 is a wasteful number, since it uses less digits than its factorization.

12728793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55124.

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

The square root of 12728793 is about 3567.7434044505. The cubic root of 12728793 is about 233.4868402575.

It can be divided in two parts, 127 and 28793, that added together give a triangular number (28920 = T₂₄₀).

The spelling of 12728793 in words is "twelve million, seven hundred twenty-eight thousand, seven hundred ninety-three".