19896916 has 24 divisors (see below), whose sum is σ = 38710784. Its totient is φ = 8886240.

The previous prime is 19896913. The next prime is 19896941. The reversal of 19896916 is 61969891.

It is a super-3 number, since 3×19896916³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 19896916.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19896911) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4560 + ... + 7783.

Almost surely, 2^19896916 is an apocalyptic number.

It is an amenable number.

19896916 is a deficient number, since it is larger than the sum of its proper divisors (18813868).

19896916 is a wasteful number, since it uses less digits than its factorization.

19896916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12391 (or 12389 counting only the distinct ones).

The product of its digits is 209952, while the sum is 49.

The square root of 19896916 is about 4460.5959243133. The cubic root of 19896916 is about 270.9746030856.

The spelling of 19896916 in words is "nineteen million, eight hundred ninety-six thousand, nine hundred sixteen".