12780748 has 12 divisors (see below), whose sum is σ = 22453200. Its totient is φ = 6365552.

The previous prime is 12780743. The next prime is 12780763. The reversal of 12780748 is 84708721.

It is not an unprimeable number, because it can be changed into a prime (12780743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5023 + ... + 7126.

It is an arithmetic number, because the mean of its divisors is an integer number (1871100).

Almost surely, 2^12780748 is an apocalyptic number.

It is an amenable number.

12780748 is a deficient number, since it is larger than the sum of its proper divisors (9672452).

12780748 is a wasteful number, since it uses less digits than its factorization.

12780748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12416 (or 12414 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 37.

The square root of 12780748 is about 3575.0172027558. The cubic root of 12780748 is about 233.8040827322.

The spelling of 12780748 in words is "twelve million, seven hundred eighty thousand, seven hundred forty-eight".