19703668 has 12 divisors (see below), whose sum is σ = 34525792. Its totient is φ = 9839160.

The previous prime is 19703653. The next prime is 19703681. The reversal of 19703668 is 86630791.

It is a self number, because there is not a number n which added to its sum of digits gives 19703668.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 913 + ... + 6343.

Almost surely, 2^19703668 is an apocalyptic number.

It is an amenable number.

19703668 is a deficient number, since it is larger than the sum of its proper divisors (14822124).

19703668 is a wasteful number, since it uses less digits than its factorization.

19703668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6342 (or 6340 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 19703668 is about 4438.8813906208. The cubic root of 19703668 is about 270.0944708282.

The spelling of 19703668 in words is "nineteen million, seven hundred three thousand, six hundred sixty-eight".