298147889 has 4 divisors (see below), whose sum is σ = 321082356. Its totient is φ = 275213424.

The previous prime is 298147831. The next prime is 298147897. The reversal of 298147889 is 988741892.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 164352400 + 133795489 = 12820^2 + 11567^2 .

It is a cyclic number.

It is not a de Polignac number, because 298147889 - 2²⁸ = 29712433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (298147189) 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 3 ways as a sum of consecutive naturals, for example, 11467214 + ... + 11467239.

It is an arithmetic number, because the mean of its divisors is an integer number (80270589).

Almost surely, 2^298147889 is an apocalyptic number.

It is an amenable number.

298147889 is a deficient number, since it is larger than the sum of its proper divisors (22934467).

298147889 is a wasteful number, since it uses less digits than its factorization.

298147889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22934466.

The product of its digits is 2322432, while the sum is 56.

The square root of 298147889 is about 17266.9594601945. The cubic root of 298147889 is about 668.0524784868.

The spelling of 298147889 in words is "two hundred ninety-eight million, one hundred forty-seven thousand, eight hundred eighty-nine".