298644089 has 2 divisors, whose sum is σ = 298644090. Its totient is φ = 298644088.

The previous prime is 298644077. The next prime is 298644103. The reversal of 298644089 is 980446892.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 287641600 + 11002489 = 16960^2 + 3317^2 .

It is a cyclic number.

It is not a de Polignac number, because 298644089 - 2¹² = 298639993 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (298644289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149322044 + 149322045.

It is an arithmetic number, because the mean of its divisors is an integer number (149322045).

Almost surely, 2^298644089 is an apocalyptic number.

It is an amenable number.

298644089 is a deficient number, since it is larger than the sum of its proper divisors (1).

298644089 is an equidigital number, since it uses as much as digits as its factorization.

298644089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 995328, while the sum is 50.

The square root of 298644089 is about 17281.3219691087. The cubic root of 298644089 is about 668.4228807003.

The spelling of 298644089 in words is "two hundred ninety-eight million, six hundred forty-four thousand, eighty-nine".