19896966 has 12 divisors (see below), whose sum is σ = 43110132. Its totient is φ = 6632316.

The previous prime is 19896959. The next prime is 19896991. The reversal of 19896966 is 66969891.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 552676 + ... + 552711.

It is an arithmetic number, because the mean of its divisors is an integer number (3592511).

Almost surely, 2^19896966 is an apocalyptic number.

19896966 is an abundant number, since it is smaller than the sum of its proper divisors (23213166).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19896966 is a wasteful number, since it uses less digits than its factorization.

19896966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105395 (or 1105392 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 54.

The square root of 19896966 is about 4460.6015289420. The cubic root of 19896966 is about 270.9748300675.

The spelling of 19896966 in words is "nineteen million, eight hundred ninety-six thousand, nine hundred sixty-six".