298702321 has 2 divisors, whose sum is σ = 298702322. Its totient is φ = 298702320.

The previous prime is 298702307. The next prime is 298702331. The reversal of 298702321 is 123207892.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 223203600 + 75498721 = 14940^2 + 8689^2 .

It is a cyclic number.

It is not a de Polignac number, because 298702321 - 2¹⁷ = 298571249 is a prime.

It is not a weakly prime, because it can be changed into another prime (298702331) 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, 149351160 + 149351161.

It is an arithmetic number, because the mean of its divisors is an integer number (149351161).

Almost surely, 2^298702321 is an apocalyptic number.

It is an amenable number.

298702321 is a deficient number, since it is larger than the sum of its proper divisors (1).

298702321 is an equidigital number, since it uses as much as digits as its factorization.

298702321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 298702321 is about 17283.0067117964. The cubic root of 298702321 is about 668.4663226803.

The spelling of 298702321 in words is "two hundred ninety-eight million, seven hundred two thousand, three hundred twenty-one".