12547928 has 16 divisors (see below), whose sum is σ = 23569080. Its totient is φ = 6262848.

The previous prime is 12547891. The next prime is 12547933. The reversal of 12547928 is 82974521.

It is a junction number, because it is equal to n+sod(n) for n = 12547891 and 12547900.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5300 + ... + 7292.

Almost surely, 2^12547928 is an apocalyptic number.

It is an amenable number.

12547928 is a deficient number, since it is larger than the sum of its proper divisors (11021152).

12547928 is a wasteful number, since it uses less digits than its factorization.

12547928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2786 (or 2782 counting only the distinct ones).

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

The square root of 12547928 is about 3542.3054639599. The cubic root of 12547928 is about 232.3756794798.

The spelling of 12547928 in words is "twelve million, five hundred forty-seven thousand, nine hundred twenty-eight".