188850947 has 4 divisors (see below), whose sum is σ = 188949696. Its totient is φ = 188752200.

The previous prime is 188850941. The next prime is 188850967. The reversal of 188850947 is 749058881.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 749058881 = 47 ⋅15937423.

It is a cyclic number.

It is not a de Polignac number, because 188850947 - 2⁸ = 188850691 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 188850895 and 188850904.

It is not an unprimeable number, because it can be changed into a prime (188850941) 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 3 ways as a sum of consecutive naturals, for example, 46448 + ... + 50349.

It is an arithmetic number, because the mean of its divisors is an integer number (47237424).

Almost surely, 2^188850947 is an apocalyptic number.

188850947 is a deficient number, since it is larger than the sum of its proper divisors (98749).

188850947 is an equidigital number, since it uses as much as digits as its factorization.

188850947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98748.

The product of its (nonzero) digits is 645120, while the sum is 50.

The square root of 188850947 is about 13742.3050104413. The cubic root of 188850947 is about 573.7284537106.

The spelling of 188850947 in words is "one hundred eighty-eight million, eight hundred fifty thousand, nine hundred forty-seven".