19696988 has 12 divisors (see below), whose sum is σ = 34792632. Its totient is φ = 9756240.

The previous prime is 19696969. The next prime is 19697021. The reversal of 19696988 is 88969691.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22583 + ... + 23438.

It is an arithmetic number, because the mean of its divisors is an integer number (2899386).

Almost surely, 2^19696988 is an apocalyptic number.

It is an amenable number.

19696988 is a deficient number, since it is larger than the sum of its proper divisors (15095644).

19696988 is a wasteful number, since it uses less digits than its factorization.

19696988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46132 (or 46130 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 56.

The square root of 19696988 is about 4438.1288850145. The cubic root of 19696988 is about 270.0639446169.

The spelling of 19696988 in words is "nineteen million, six hundred ninety-six thousand, nine hundred eighty-eight".