12879984 has 40 divisors (see below), whose sum is σ = 35834512. Its totient is φ = 3962880.

The previous prime is 12879983. The next prime is 12880001. The reversal of 12879984 is 48997821.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12879983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9697 + ... + 10944.

Almost surely, 2^12879984 is an apocalyptic number.

It is an amenable number.

12879984 is an abundant number, since it is smaller than the sum of its proper divisors (22954528).

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

12879984 is a wasteful number, since it uses less digits than its factorization.

12879984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20665 (or 20659 counting only the distinct ones).

The product of its digits is 290304, while the sum is 48.

The square root of 12879984 is about 3588.8694598717. The cubic root of 12879984 is about 234.4076465102.

The spelling of 12879984 in words is "twelve million, eight hundred seventy-nine thousand, nine hundred eighty-four".