13901984 has 12 divisors (see below), whose sum is σ = 27369594. Its totient is φ = 6950976.

The previous prime is 13901957. The next prime is 13901999. The reversal of 13901984 is 48910931.

It can be written as a sum of positive squares in only one way, i.e., 13162384 + 739600 = 3628^2 + 860^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217187 + ... + 217250.

Almost surely, 2^13901984 is an apocalyptic number.

It is an amenable number.

13901984 is a deficient number, since it is larger than the sum of its proper divisors (13467610).

13901984 is an equidigital number, since it uses as much as digits as its factorization.

13901984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434447 (or 434439 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 13901984 is about 3728.5364420909. The cubic root of 13901984 is about 240.4504503278.

The spelling of 13901984 in words is "thirteen million, nine hundred one thousand, nine hundred eighty-four".