298170749 has 2 divisors, whose sum is σ = 298170750. Its totient is φ = 298170748.

The previous prime is 298170713. The next prime is 298170757. The reversal of 298170749 is 947071892.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 295668025 + 2502724 = 17195^2 + 1582^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-298170749 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (298170149) 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 as a sum of consecutive naturals, namely, 149085374 + 149085375.

It is an arithmetic number, because the mean of its divisors is an integer number (149085375).

Almost surely, 2^298170749 is an apocalyptic number.

It is an amenable number.

298170749 is a deficient number, since it is larger than the sum of its proper divisors (1).

298170749 is an equidigital number, since it uses as much as digits as its factorization.

298170749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 47.

The square root of 298170749 is about 17267.6214053934. The cubic root of 298170749 is about 668.0695519928.

The spelling of 298170749 in words is "two hundred ninety-eight million, one hundred seventy thousand, seven hundred forty-nine".