12919884 has 12 divisors (see below), whose sum is σ = 30146424. Its totient is φ = 4306624.

The previous prime is 12919883. The next prime is 12919889. The reversal of 12919884 is 48891921.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (12919883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 538317 + ... + 538340.

It is an arithmetic number, because the mean of its divisors is an integer number (2512202).

Almost surely, 2^12919884 is an apocalyptic number.

It is an amenable number.

12919884 is an abundant number, since it is smaller than the sum of its proper divisors (17226540).

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

12919884 is a wasteful number, since it uses less digits than its factorization.

12919884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076664 (or 1076662 counting only the distinct ones).

The product of its digits is 41472, while the sum is 42.

The square root of 12919884 is about 3594.4240150544. The cubic root of 12919884 is about 234.6494486693.

It can be divided in two parts, 1291 and 9884, that added together give a triangular number (11175 = T₁₄₉).

The spelling of 12919884 in words is "twelve million, nine hundred nineteen thousand, eight hundred eighty-four".