12728495 has 16 divisors (see below), whose sum is σ = 17418240. Its totient is φ = 8845824.

The previous prime is 12728479. The next prime is 12728503. The reversal of 12728495 is 59482721.

12728495 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 12728495 - 2⁴ = 12728479 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4655 + ... + 6864.

It is an arithmetic number, because the mean of its divisors is an integer number (1088640).

Almost surely, 2^12728495 is an apocalyptic number.

12728495 is a deficient number, since it is larger than the sum of its proper divisors (4689745).

12728495 is a wasteful number, since it uses less digits than its factorization.

12728495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11554.

The product of its digits is 40320, while the sum is 38.

The square root of 12728495 is about 3567.7016411129. The cubic root of 12728495 is about 233.4850181517.

The spelling of 12728495 in words is "twelve million, seven hundred twenty-eight thousand, four hundred ninety-five".