12719749 has 16 divisors (see below), whose sum is σ = 15173248. Its totient is φ = 10435392.

The previous prime is 12719747. The next prime is 12719761. The reversal of 12719749 is 94791721.

It is a cyclic number.

It is not a de Polignac number, because 12719749 - 2¹ = 12719747 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 (12719741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16987 + ... + 17719.

It is an arithmetic number, because the mean of its divisors is an integer number (948328).

Almost surely, 2^12719749 is an apocalyptic number.

It is an amenable number.

12719749 is a deficient number, since it is larger than the sum of its proper divisors (2453499).

12719749 is an equidigital number, since it uses as much as digits as its factorization.

12719749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844.

The product of its digits is 31752, while the sum is 40.

The square root of 12719749 is about 3566.4757113991. The cubic root of 12719749 is about 233.4315285114.

The spelling of 12719749 in words is "twelve million, seven hundred nineteen thousand, seven hundred forty-nine".