12740791 has 16 divisors (see below), whose sum is σ = 15095808. Its totient is φ = 10526400.

The previous prime is 12740789. The next prime is 12740797. The reversal of 12740791 is 19704721.

12740791 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12740791 - 2¹ = 12740789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12740797) 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, 29346 + ... + 29776.

It is an arithmetic number, because the mean of its divisors is an integer number (943488).

Almost surely, 2^12740791 is an apocalyptic number.

12740791 is a deficient number, since it is larger than the sum of its proper divisors (2355017).

12740791 is a wasteful number, since it uses less digits than its factorization.

12740791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582.

The product of its (nonzero) digits is 3528, while the sum is 31.

The square root of 12740791 is about 3569.4244634114. The cubic root of 12740791 is about 233.5601778052.

It can be divided in two parts, 12740 and 791, that added together give a palindrome (13531).

The spelling of 12740791 in words is "twelve million, seven hundred forty thousand, seven hundred ninety-one".