13287912 has 32 divisors (see below), whose sum is σ = 36240480. Its totient is φ = 4026560.

The previous prime is 13287893. The next prime is 13287913. The reversal of 13287912 is 21978231.

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

It is not an unprimeable number, because it can be changed into a prime (13287913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24903 + ... + 25430.

It is an arithmetic number, because the mean of its divisors is an integer number (1132515).

Almost surely, 2^13287912 is an apocalyptic number.

13287912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13287912 is an abundant number, since it is smaller than the sum of its proper divisors (22952568).

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

13287912 is a wasteful number, since it uses less digits than its factorization.

13287912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50353 (or 50349 counting only the distinct ones).

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

The square root of 13287912 is about 3645.2588385463. The cubic root of 13287912 is about 236.8566492329.

The spelling of 13287912 in words is "thirteen million, two hundred eighty-seven thousand, nine hundred twelve".