19796189 has 8 divisors (see below), whose sum is σ = 23051520. Its totient is φ = 16647696.

The previous prime is 19796173. The next prime is 19796201. The reversal of 19796189 is 98169791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 19796189 - 2⁴ = 19796173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19796389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26309 + ... + 27050.

It is an arithmetic number, because the mean of its divisors is an integer number (2881440).

Almost surely, 2^19796189 is an apocalyptic number.

It is an amenable number.

19796189 is a deficient number, since it is larger than the sum of its proper divisors (3255331).

19796189 is an equidigital number, since it uses as much as digits as its factorization.

19796189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53419.

The product of its digits is 244944, while the sum is 50.

The square root of 19796189 is about 4449.2908423703. The cubic root of 19796189 is about 270.5165648030.

The spelling of 19796189 in words is "nineteen million, seven hundred ninety-six thousand, one hundred eighty-nine".