19711396 has 12 divisors (see below), whose sum is σ = 34529152. Its totient is φ = 9845928.

The previous prime is 19711361. The next prime is 19711397. The reversal of 19711396 is 69311791.

It is not an unprimeable number, because it can be changed into a prime (19711397) 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, 3961 + ... + 7423.

Almost surely, 2^19711396 is an apocalyptic number.

It is an amenable number.

19711396 is a deficient number, since it is larger than the sum of its proper divisors (14817756).

19711396 is a wasteful number, since it uses less digits than its factorization.

19711396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4890 (or 4888 counting only the distinct ones).

The product of its digits is 10206, while the sum is 37.

The square root of 19711396 is about 4439.7517948642. The cubic root of 19711396 is about 270.1297775748.

The spelling of 19711396 in words is "nineteen million, seven hundred eleven thousand, three hundred ninety-six".