12911712 has 48 divisors (see below), whose sum is σ = 36977472. Its totient is φ = 3912320.

The previous prime is 12911711. The next prime is 12911713. The reversal of 12911712 is 21711921.

It is an interprime number because it is at equal distance from previous prime (12911711) and next prime (12911713).

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12911711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5058 + ... + 7169.

It is an arithmetic number, because the mean of its divisors is an integer number (770364).

Almost surely, 2^12911712 is an apocalyptic number.

12911712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12911712 is an abundant number, since it is smaller than the sum of its proper divisors (24065760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12911712 is a wasteful number, since it uses less digits than its factorization.

12911712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12251 (or 12243 counting only the distinct ones).

The product of its digits is 252, while the sum is 24.

The square root of 12911712 is about 3593.2870745322. The cubic root of 12911712 is about 234.5999652598.

It can be divided in two parts, 1291 and 1712, that added together give a palindrome (3003).

The spelling of 12911712 in words is "twelve million, nine hundred eleven thousand, seven hundred twelve".