189328603 has 2 divisors, whose sum is σ = 189328604. Its totient is φ = 189328602.

The previous prime is 189328591. The next prime is 189328619. The reversal of 189328603 is 306823981.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 189328603 - 2⁹ = 189328091 is a prime.

It is not a weakly prime, because it can be changed into another prime (189388603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94664301 + 94664302.

It is an arithmetic number, because the mean of its divisors is an integer number (94664302).

Almost surely, 2^189328603 is an apocalyptic number.

189328603 is a deficient number, since it is larger than the sum of its proper divisors (1).

189328603 is an equidigital number, since it uses as much as digits as its factorization.

189328603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 189328603 is about 13759.6730702441. The cubic root of 189328603 is about 574.2117521739.

The spelling of 189328603 in words is "one hundred eighty-nine million, three hundred twenty-eight thousand, six hundred three".