188868873 has 8 divisors (see below), whose sum is σ = 265079200. Its totient is φ = 119285568.

The previous prime is 188868829. The next prime is 188868877. The reversal of 188868873 is 378868881.

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

It is not a de Polignac number, because 188868873 - 2¹⁰ = 188867849 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57), and also a Moran number because the ratio is a prime number: 3313489 = 188868873 / (1 + 8 + 8 + 8 + 6 + 8 + 8 + 7 + 3).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (188868877) 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, 1656688 + ... + 1656801.

It is an arithmetic number, because the mean of its divisors is an integer number (33134900).

Almost surely, 2^188868873 is an apocalyptic number.

It is an amenable number.

188868873 is a deficient number, since it is larger than the sum of its proper divisors (76210327).

188868873 is a wasteful number, since it uses less digits than its factorization.

188868873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3313511.

The product of its digits is 4128768, while the sum is 57.

The square root of 188868873 is about 13742.9572145154. The cubic root of 188868873 is about 573.7466061760.

The spelling of 188868873 in words is "one hundred eighty-eight million, eight hundred sixty-eight thousand, eight hundred seventy-three".