12984111 has 16 divisors (see below), whose sum is σ = 21984000. Its totient is φ = 7419384.

The previous prime is 12984089. The next prime is 12984113. The reversal of 12984111 is 11148921.

It is not a de Polignac number, because 12984111 - 2¹¹ = 12982063 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12984113) 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, 34161 + ... + 34538.

It is an arithmetic number, because the mean of its divisors is an integer number (1374000).

Almost surely, 2^12984111 is an apocalyptic number.

12984111 is a deficient number, since it is larger than the sum of its proper divisors (8999889).

12984111 is an equidigital number, since it uses as much as digits as its factorization.

12984111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68715 (or 68709 counting only the distinct ones).

The product of its digits is 576, while the sum is 27.

The square root of 12984111 is about 3603.3471939296. The cubic root of 12984111 is about 235.0376339306.

The spelling of 12984111 in words is "twelve million, nine hundred eighty-four thousand, one hundred eleven".