12750028 has 6 divisors (see below), whose sum is σ = 22312556. Its totient is φ = 6375012.

The previous prime is 12750011. The next prime is 12750071. The reversal of 12750028 is 82005721.

It is a junction number, because it is equal to n+sod(n) for n = 12749984 and 12750011.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1593750 + ... + 1593757.

Almost surely, 2^12750028 is an apocalyptic number.

It is an amenable number.

12750028 is a deficient number, since it is larger than the sum of its proper divisors (9562528).

12750028 is a wasteful number, since it uses less digits than its factorization.

12750028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3187511 (or 3187509 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 12750028 is about 3570.7181350535. The cubic root of 12750028 is about 233.6166074310.

Adding to 12750028 its reverse (82005721), we get a palindrome (94755749).

The spelling of 12750028 in words is "twelve million, seven hundred fifty thousand, twenty-eight".