19027197 has 16 divisors (see below), whose sum is σ = 32215680. Its totient is φ = 10872576.

The previous prime is 19027147. The next prime is 19027201. The reversal of 19027197 is 79172091.

It is not a de Polignac number, because 19027197 - 2⁶ = 19027133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19027147) 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 15 ways as a sum of consecutive naturals, for example, 50148 + ... + 50525.

It is an arithmetic number, because the mean of its divisors is an integer number (2013480).

Almost surely, 2^19027197 is an apocalyptic number.

It is an amenable number.

19027197 is a deficient number, since it is larger than the sum of its proper divisors (13188483).

19027197 is a wasteful number, since it uses less digits than its factorization.

19027197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100689 (or 100683 counting only the distinct ones).

The product of its (nonzero) digits is 7938, while the sum is 36.

The square root of 19027197 is about 4362.0175377914. The cubic root of 19027197 is about 266.9674243807.

The spelling of 19027197 in words is "nineteen million, twenty-seven thousand, one hundred ninety-seven".