12942747 has 10 divisors (see below), whose sum is σ = 19334348. Its totient is φ = 8628444.

The previous prime is 12942739. The next prime is 12942751. The reversal of 12942747 is 74724921.

It is not a de Polignac number, because 12942747 - 2³ = 12942739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12942737) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 79813 + ... + 79974.

Almost surely, 2^12942747 is an apocalyptic number.

12942747 is a deficient number, since it is larger than the sum of its proper divisors (6391601).

12942747 is an equidigital number, since it uses as much as digits as its factorization.

12942747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159799 (or 159790 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 12942747 is about 3597.6029519668. The cubic root of 12942747 is about 234.7877788314.

It can be divided in two parts, 12942 and 747, that added together give a square (13689 = 117²).

The spelling of 12942747 in words is "twelve million, nine hundred forty-two thousand, seven hundred forty-seven".