189538773 has 16 divisors (see below), whose sum is σ = 257531136. Its totient is φ = 123963840.

The previous prime is 189538747. The next prime is 189538801. The reversal of 189538773 is 377835981.

It is not a de Polignac number, because 189538773 - 2¹⁶ = 189473237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189538703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83611 + ... + 85847.

It is an arithmetic number, because the mean of its divisors is an integer number (16095696).

Almost surely, 2^189538773 is an apocalyptic number.

It is an amenable number.

189538773 is a deficient number, since it is larger than the sum of its proper divisors (67992363).

189538773 is a wasteful number, since it uses less digits than its factorization.

189538773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2764.

The product of its digits is 1270080, while the sum is 51.

The square root of 189538773 is about 13767.3081246844. The cubic root of 189538773 is about 574.4241473675.

The spelling of 189538773 in words is "one hundred eighty-nine million, five hundred thirty-eight thousand, seven hundred seventy-three".