12928377 has 16 divisors (see below), whose sum is σ = 21491712. Its totient is φ = 6715920.

The previous prime is 12928327. The next prime is 12928393. The reversal of 12928377 is 77382921.

12928377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12928377 - 2⁸ = 12928121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12928327) 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, 27753 + ... + 28214.

It is an arithmetic number, because the mean of its divisors is an integer number (1343232).

Almost surely, 2^12928377 is an apocalyptic number.

It is an amenable number.

12928377 is a deficient number, since it is larger than the sum of its proper divisors (8563335).

12928377 is a wasteful number, since it uses less digits than its factorization.

12928377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55988.

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

The square root of 12928377 is about 3595.6052341713. The cubic root of 12928377 is about 234.7008537038.

It can be divided in two parts, 1292 and 8377, that added together give a palindrome (9669).

The spelling of 12928377 in words is "twelve million, nine hundred twenty-eight thousand, three hundred seventy-seven".