12706749 has 12 divisors (see below), whose sum is σ = 20022912. Its totient is φ = 7701000.

The previous prime is 12706723. The next prime is 12706777. The reversal of 12706749 is 94760721.

It is a happy number.

12706749 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12706749 - 2⁵ = 12706717 is a prime.

It is a super-2 number, since 2×12706749² = 322922940298002, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12706049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64077 + ... + 64274.

It is an arithmetic number, because the mean of its divisors is an integer number (1668576).

Almost surely, 2^12706749 is an apocalyptic number.

It is an amenable number.

12706749 is a deficient number, since it is larger than the sum of its proper divisors (7316163).

12706749 is a wasteful number, since it uses less digits than its factorization.

12706749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128368 (or 128365 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 12706749 is about 3564.6527180077. The cubic root of 12706749 is about 233.3519765149.

The spelling of 12706749 in words is "twelve million, seven hundred six thousand, seven hundred forty-nine".