12287913 has 12 divisors (see below), whose sum is σ = 18009264. Its totient is φ = 7447000.

The previous prime is 12287893. The next prime is 12287929. The reversal of 12287913 is 31978221.

It is not a de Polignac number, because 12287913 - 2¹⁷ = 12156841 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12287983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16563 + ... + 17288.

It is an arithmetic number, because the mean of its divisors is an integer number (1500772).

Almost surely, 2^12287913 is an apocalyptic number.

It is an amenable number.

12287913 is a deficient number, since it is larger than the sum of its proper divisors (5721351).

12287913 is a wasteful number, since it uses less digits than its factorization.

12287913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33876 (or 33865 counting only the distinct ones).

The product of its digits is 6048, while the sum is 33.

The square root of 12287913 is about 3505.4119586719. The cubic root of 12287913 is about 230.7593866485.

The spelling of 12287913 in words is "twelve million, two hundred eighty-seven thousand, nine hundred thirteen".