189885073 has 8 divisors (see below), whose sum is σ = 222876992. Its totient is φ = 158359536.

The previous prime is 189885071. The next prime is 189885077. The reversal of 189885073 is 370588981.

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

It is a cyclic number.

It is not a de Polignac number, because 189885073 - 2¹ = 189885071 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189885071) 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 7 ways as a sum of consecutive naturals, for example, 366315 + ... + 366832.

It is an arithmetic number, because the mean of its divisors is an integer number (27859624).

Almost surely, 2^189885073 is an apocalyptic number.

It is an amenable number.

189885073 is a deficient number, since it is larger than the sum of its proper divisors (32991919).

189885073 is an equidigital number, since it uses as much as digits as its factorization.

189885073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733191.

The product of its (nonzero) digits is 483840, while the sum is 49.

The square root of 189885073 is about 13779.8792810387. The cubic root of 189885073 is about 574.7737716217.

The spelling of 189885073 in words is "one hundred eighty-nine million, eight hundred eighty-five thousand, seventy-three".