189882297 has 12 divisors (see below), whose sum is σ = 299208624. Its totient is φ = 115080120.

The previous prime is 189882269. The next prime is 189882311. The reversal of 189882297 is 792288981.

It is not a de Polignac number, because 189882297 - 2⁶ = 189882233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (189882247) 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 11 ways as a sum of consecutive naturals, for example, 958903 + ... + 959100.

It is an arithmetic number, because the mean of its divisors is an integer number (24934052).

Almost surely, 2^189882297 is an apocalyptic number.

It is an amenable number.

189882297 is a deficient number, since it is larger than the sum of its proper divisors (109326327).

189882297 is a wasteful number, since it uses less digits than its factorization.

189882297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1918020 (or 1918017 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 54.

The square root of 189882297 is about 13779.7785540988. The cubic root of 189882297 is about 574.7709706648.

The spelling of 189882297 in words is "one hundred eighty-nine million, eight hundred eighty-two thousand, two hundred ninety-seven".