12682749 has 8 divisors (see below), whose sum is σ = 17367520. Its totient is φ = 8226576.

The previous prime is 12682727. The next prime is 12682757. The reversal of 12682749 is 94728621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12682749 - 2⁹ = 12682237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12682849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57019 + ... + 57240.

It is an arithmetic number, because the mean of its divisors is an integer number (2170940).

Almost surely, 2^12682749 is an apocalyptic number.

It is an amenable number.

12682749 is a deficient number, since it is larger than the sum of its proper divisors (4684771).

12682749 is a wasteful number, since it uses less digits than its factorization.

12682749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114299.

The product of its digits is 48384, while the sum is 39.

The square root of 12682749 is about 3561.2847400903. The cubic root of 12682749 is about 233.2049686241.

It can be divided in two parts, 12682 and 749, that added together give a palindrome (13431).

The spelling of 12682749 in words is "twelve million, six hundred eighty-two thousand, seven hundred forty-nine".