19485873 has 16 divisors (see below), whose sum is σ = 31492800. Its totient is φ = 11809440.

The previous prime is 19485863. The next prime is 19485889. The reversal of 19485873 is 37858491.

It is not a de Polignac number, because 19485873 - 2⁵ = 19485841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19485863) 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 15 ways as a sum of consecutive naturals, for example, 32508 + ... + 33101.

It is an arithmetic number, because the mean of its divisors is an integer number (1968300).

Almost surely, 2^19485873 is an apocalyptic number.

It is an amenable number.

19485873 is a deficient number, since it is larger than the sum of its proper divisors (12006927).

19485873 is a wasteful number, since it uses less digits than its factorization.

19485873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65629 (or 65623 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 19485873 is about 4414.2805755865. The cubic root of 19485873 is about 269.0956160601.

The spelling of 19485873 in words is "nineteen million, four hundred eighty-five thousand, eight hundred seventy-three".