19697848 has 16 divisors (see below), whose sum is σ = 37171080. Its totient is φ = 9785568.

The previous prime is 19697837. The next prime is 19697857. The reversal of 19697848 is 84879691.

It is a happy number.

It is a super-2 number, since 2×19697848² = 776010431662208, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 19697795 and 19697804.

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, 6586 + ... + 9097.

Almost surely, 2^19697848 is an apocalyptic number.

It is an amenable number.

19697848 is a deficient number, since it is larger than the sum of its proper divisors (17473232).

19697848 is a wasteful number, since it uses less digits than its factorization.

19697848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15846 (or 15842 counting only the distinct ones).

The product of its digits is 870912, while the sum is 52.

The square root of 19697848 is about 4438.2257716344. The cubic root of 19697848 is about 270.0678750252.

The spelling of 19697848 in words is "nineteen million, six hundred ninety-seven thousand, eight hundred forty-eight".