12749748 has 24 divisors (see below), whose sum is σ = 32454240. Its totient is φ = 3863520.

The previous prime is 12749717. The next prime is 12749749. The reversal of 12749748 is 84794721.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12749749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48163 + ... + 48426.

It is an arithmetic number, because the mean of its divisors is an integer number (1352260).

Almost surely, 2^12749748 is an apocalyptic number.

It is an amenable number.

12749748 is an abundant number, since it is smaller than the sum of its proper divisors (19704492).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12749748 is a wasteful number, since it uses less digits than its factorization.

12749748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96607 (or 96605 counting only the distinct ones).

The product of its digits is 112896, while the sum is 42.

The square root of 12749748 is about 3570.6789270389. The cubic root of 12749748 is about 233.6148972876.

The spelling of 12749748 in words is "twelve million, seven hundred forty-nine thousand, seven hundred forty-eight".