19988675 has 12 divisors (see below), whose sum is σ = 28327056. Its totient is φ = 13706400.

The previous prime is 19988671. The next prime is 19988681. The reversal of 19988675 is 57688991.

It is not a de Polignac number, because 19988675 - 2² = 19988671 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19988671) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56936 + ... + 57285.

It is an arithmetic number, because the mean of its divisors is an integer number (2360588).

Almost surely, 2^19988675 is an apocalyptic number.

19988675 is a deficient number, since it is larger than the sum of its proper divisors (8338381).

19988675 is a wasteful number, since it uses less digits than its factorization.

19988675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114238 (or 114233 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 53.

The square root of 19988675 is about 4470.8696022139. The cubic root of 19988675 is about 271.3905173534.

The spelling of 19988675 in words is "nineteen million, nine hundred eighty-eight thousand, six hundred seventy-five".