12632728 has 8 divisors (see below), whose sum is σ = 23686380. Its totient is φ = 6316360.

The previous prime is 12632713. The next prime is 12632759. The reversal of 12632728 is 82723621.

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 12632728.

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, 789538 + ... + 789553.

Almost surely, 2^12632728 is an apocalyptic number.

It is an amenable number.

12632728 is a deficient number, since it is larger than the sum of its proper divisors (11053652).

12632728 is a wasteful number, since it uses less digits than its factorization.

12632728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1579097 (or 1579093 counting only the distinct ones).

The product of its digits is 8064, while the sum is 31.

The square root of 12632728 is about 3554.2549148872. The cubic root of 12632728 is about 232.8979764182.

The spelling of 12632728 in words is "twelve million, six hundred thirty-two thousand, seven hundred twenty-eight".