12560728 has 8 divisors (see below), whose sum is σ = 23551380. Its totient is φ = 6280360.

The previous prime is 12560711. The next prime is 12560731. The reversal of 12560728 is 82706521.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 12560728.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 785038 + ... + 785053.

Almost surely, 2^12560728 is an apocalyptic number.

It is an amenable number.

12560728 is a deficient number, since it is larger than the sum of its proper divisors (10990652).

12560728 is a wasteful number, since it uses less digits than its factorization.

12560728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570097 (or 1570093 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 12560728 is about 3544.1117363876. Note that the first 3 decimals coincide. The cubic root of 12560728 is about 232.4546672321.

The spelling of 12560728 in words is "twelve million, five hundred sixty thousand, seven hundred twenty-eight".