189447298 has 4 divisors (see below), whose sum is σ = 284170950. Its totient is φ = 94723648.

The previous prime is 189447287. The next prime is 189447301. The reversal of 189447298 is 892744981.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 892744981 = 103 ⋅8667427.

It can be written as a sum of positive squares in only one way, i.e., 159340129 + 30107169 = 12623^2 + 5487^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47361823 + ... + 47361826.

Almost surely, 2^189447298 is an apocalyptic number.

189447298 is a deficient number, since it is larger than the sum of its proper divisors (94723652).

189447298 is an equidigital number, since it uses as much as digits as its factorization.

189447298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94723651.

The product of its digits is 1161216, while the sum is 52.

The square root of 189447298 is about 13763.9855419860. The cubic root of 189447298 is about 574.3317231747.

The spelling of 189447298 in words is "one hundred eighty-nine million, four hundred forty-seven thousand, two hundred ninety-eight".