19963796 has 6 divisors (see below), whose sum is σ = 34936650. Its totient is φ = 9981896.

The previous prime is 19963753. The next prime is 19963807. The reversal of 19963796 is 69736991.

It can be written as a sum of positive squares in only one way, i.e., 18490000 + 1473796 = 4300^2 + 1214^2 .

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, 2495471 + ... + 2495478.

It is an arithmetic number, because the mean of its divisors is an integer number (5822775).

Almost surely, 2^19963796 is an apocalyptic number.

It is an amenable number.

19963796 is a deficient number, since it is larger than the sum of its proper divisors (14972854).

19963796 is a wasteful number, since it uses less digits than its factorization.

19963796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4990953 (or 4990951 counting only the distinct ones).

The product of its digits is 551124, while the sum is 50.

The square root of 19963796 is about 4468.0863912865. The cubic root of 19963796 is about 271.2778747713.

The spelling of 19963796 in words is "nineteen million, nine hundred sixty-three thousand, seven hundred ninety-six".