13047984 has 90 divisors (see below), whose sum is σ = 38692836. Its totient is φ = 4104000.

The previous prime is 13047977. The next prime is 13047989. The reversal of 13047984 is 48974031.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (13047989) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 51859 + ... + 52109.

Almost surely, 2^13047984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13047984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19346418).

13047984 is an abundant number, since it is smaller than the sum of its proper divisors (25644852).

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

13047984 is a wasteful number, since it uses less digits than its factorization.

13047984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303 (or 275 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 13047984 is about 3612.1993300481. The cubic root of 13047984 is about 235.4224121326.

The spelling of 13047984 in words is "thirteen million, forty-seven thousand, nine hundred eighty-four".