189220671 has 8 divisors (see below), whose sum is σ = 280326960. Its totient is φ = 126147096.

The previous prime is 189220657. The next prime is 189220687. The reversal of 189220671 is 176022981.

It is not a de Polignac number, because 189220671 - 2⁹ = 189220159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189220651) 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 7 ways as a sum of consecutive naturals, for example, 3504060 + ... + 3504113.

It is an arithmetic number, because the mean of its divisors is an integer number (35040870).

Almost surely, 2^189220671 is an apocalyptic number.

189220671 is a deficient number, since it is larger than the sum of its proper divisors (91106289).

189220671 is an equidigital number, since it uses as much as digits as its factorization.

189220671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7008182 (or 7008176 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 189220671 is about 13755.7504702579. The cubic root of 189220671 is about 574.1026163424.

The spelling of 189220671 in words is "one hundred eighty-nine million, two hundred twenty thousand, six hundred seventy-one".