19984713 has 16 divisors (see below), whose sum is σ = 32056320. Its totient is φ = 10818576.

The previous prime is 19984697. The next prime is 19984717. The reversal of 19984713 is 31748991.

It is a happy number.

It is not a de Polignac number, because 19984713 - 2⁴ = 19984697 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (19984717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24645 + ... + 25442.

It is an arithmetic number, because the mean of its divisors is an integer number (2003520).

Almost surely, 2^19984713 is an apocalyptic number.

It is an amenable number.

19984713 is a deficient number, since it is larger than the sum of its proper divisors (12071607).

19984713 is a wasteful number, since it uses less digits than its factorization.

19984713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50116.

The product of its digits is 54432, while the sum is 42.

The square root of 19984713 is about 4470.4264897211. The cubic root of 19984713 is about 271.3725851946.

The spelling of 19984713 in words is "nineteen million, nine hundred eighty-four thousand, seven hundred thirteen".