13211984 has 10 divisors (see below), whose sum is σ = 25598250. Its totient is φ = 6605984.

The previous prime is 13211977. The next prime is 13211993. The reversal of 13211984 is 48911231.

It can be written as a sum of positive squares in only one way, i.e., 13104400 + 107584 = 3620^2 + 328^2 .

It is a nialpdrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 412859 + ... + 412890.

It is an arithmetic number, because the mean of its divisors is an integer number (2559825).

Almost surely, 2^13211984 is an apocalyptic number.

It is an amenable number.

13211984 is a deficient number, since it is larger than the sum of its proper divisors (12386266).

13211984 is an equidigital number, since it uses as much as digits as its factorization.

13211984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825757 (or 825751 counting only the distinct ones).

The product of its digits is 1728, while the sum is 29.

The square root of 13211984 is about 3634.8292944786. The cubic root of 13211984 is about 236.4046490783.

The spelling of 13211984 in words is "thirteen million, two hundred eleven thousand, nine hundred eighty-four".