189321377 has 8 divisors (see below), whose sum is σ = 227755200. Its totient is φ = 153734544.

The previous prime is 189321343. The next prime is 189321427. The reversal of 189321377 is 773123981.

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 189321377 - 2¹⁰ = 189320353 is a prime.

It is a super-2 number, since 2×189321377² = 71685167578352258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189321317) 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 7 ways as a sum of consecutive naturals, for example, 711602 + ... + 711867.

It is an arithmetic number, because the mean of its divisors is an integer number (28469400).

Almost surely, 2^189321377 is an apocalyptic number.

It is an amenable number.

189321377 is a deficient number, since it is larger than the sum of its proper divisors (38433823).

189321377 is a wasteful number, since it uses less digits than its factorization.

189321377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1423495.

The product of its digits is 63504, while the sum is 41.

The square root of 189321377 is about 13759.4104888255. The cubic root of 189321377 is about 574.2044468736.

The spelling of 189321377 in words is "one hundred eighty-nine million, three hundred twenty-one thousand, three hundred seventy-seven".