298675409 has 2 divisors, whose sum is σ = 298675410. Its totient is φ = 298675408.

The previous prime is 298675373. The next prime is 298675411. The reversal of 298675409 is 904576892.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 181494784 + 117180625 = 13472^2 + 10825^2 .

It is a cyclic number.

It is not a de Polignac number, because 298675409 - 2¹² = 298671313 is a prime.

Together with 298675411, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (298675439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149337704 + 149337705.

It is an arithmetic number, because the mean of its divisors is an integer number (149337705).

Almost surely, 2^298675409 is an apocalyptic number.

It is an amenable number.

298675409 is a deficient number, since it is larger than the sum of its proper divisors (1).

298675409 is an equidigital number, since it uses as much as digits as its factorization.

298675409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The square root of 298675409 is about 17282.2281260259. The cubic root of 298675409 is about 668.4462466105.

The spelling of 298675409 in words is "two hundred ninety-eight million, six hundred seventy-five thousand, four hundred nine".