12543628 has 12 divisors (see below), whose sum is σ = 21987280. Its totient is φ = 6261552.

The previous prime is 12543607. The next prime is 12543647. The reversal of 12543628 is 82634521.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 12543628.

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, 625 + ... + 5047.

Almost surely, 2^12543628 is an apocalyptic number.

It is an amenable number.

12543628 is a deficient number, since it is larger than the sum of its proper divisors (9443652).

12543628 is a wasteful number, since it uses less digits than its factorization.

12543628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5136 (or 5134 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The square root of 12543628 is about 3541.6984626024. The cubic root of 12543628 is about 232.3491324785.

The spelling of 12543628 in words is "twelve million, five hundred forty-three thousand, six hundred twenty-eight".