19995708 has 12 divisors (see below), whose sum is σ = 46656680. Its totient is φ = 6665232.

The previous prime is 19995707. The next prime is 19995721. The reversal of 19995708 is 80759991.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19995707) 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 3 ways as a sum of consecutive naturals, for example, 833143 + ... + 833166.

Almost surely, 2^19995708 is an apocalyptic number.

It is an amenable number.

19995708 is an abundant number, since it is smaller than the sum of its proper divisors (26660972).

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

19995708 is a wasteful number, since it uses less digits than its factorization.

19995708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666316 (or 1666314 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 48.

The square root of 19995708 is about 4471.6560690643. The cubic root of 19995708 is about 271.4223431363.

The spelling of 19995708 in words is "nineteen million, nine hundred ninety-five thousand, seven hundred eight".