65730189 has 16 divisors (see below), whose sum is σ = 101859840. Its totient is φ = 36922800.

The previous prime is 65730173. The next prime is 65730191. The reversal of 65730189 is 98103756.

It is not a de Polignac number, because 65730189 - 2⁴ = 65730173 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65730169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25287 + ... + 27764.

It is an arithmetic number, because the mean of its divisors is an integer number (6366240).

Almost surely, 2^65730189 is an apocalyptic number.

It is an amenable number.

65730189 is a deficient number, since it is larger than the sum of its proper divisors (36129651).

65730189 is a wasteful number, since it uses less digits than its factorization.

65730189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53120.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 65730189 is about 8107.4156794875. The cubic root of 65730189 is about 403.5725575048.

The spelling of 65730189 in words is "sixty-five million, seven hundred thirty thousand, one hundred eighty-nine".