19785796 has 12 divisors (see below), whose sum is σ = 36130752. Its totient is φ = 9462728.

The previous prime is 19785793. The next prime is 19785797. The reversal of 19785796 is 69758791.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (19785791) 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, 107440 + ... + 107623.

It is an arithmetic number, because the mean of its divisors is an integer number (3010896).

Almost surely, 2^19785796 is an apocalyptic number.

It is an amenable number.

19785796 is a deficient number, since it is larger than the sum of its proper divisors (16344956).

19785796 is a wasteful number, since it uses less digits than its factorization.

19785796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215090 (or 215088 counting only the distinct ones).

The product of its digits is 952560, while the sum is 52.

The square root of 19785796 is about 4448.1227501048. The cubic root of 19785796 is about 270.4692161136.

The spelling of 19785796 in words is "nineteen million, seven hundred eighty-five thousand, seven hundred ninety-six".