189824089 has 16 divisors (see below), whose sum is σ = 238403200. Its totient is φ = 150186960.

The previous prime is 189824087. The next prime is 189824093. The reversal of 189824089 is 980428981.

189824089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 189824089 - 2¹ = 189824087 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (189824081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16827 + ... + 25744.

It is an arithmetic number, because the mean of its divisors is an integer number (14900200).

Almost surely, 2^189824089 is an apocalyptic number.

It is an amenable number.

189824089 is a deficient number, since it is larger than the sum of its proper divisors (48579111).

189824089 is an equidigital number, since it uses as much as digits as its factorization.

189824089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42605 (or 42591 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 49.

The square root of 189824089 is about 13777.6663118251. Note that the first 3 decimals coincide. The cubic root of 189824089 is about 574.7122330706.

The spelling of 189824089 in words is "one hundred eighty-nine million, eight hundred twenty-four thousand, eighty-nine".