298691369 has 2 divisors, whose sum is σ = 298691370. Its totient is φ = 298691368.

The previous prime is 298691347. The next prime is 298691383. The reversal of 298691369 is 963196892.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 178569769 + 120121600 = 13363^2 + 10960^2 .

It is a cyclic number.

It is not a de Polignac number, because 298691369 - 2²⁸ = 30255913 is a prime.

It is a super-2 number, since 2×298691369² = 178433067830188322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 298691369.

It is not a weakly prime, because it can be changed into another prime (298691069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149345684 + 149345685.

It is an arithmetic number, because the mean of its divisors is an integer number (149345685).

Almost surely, 2^298691369 is an apocalyptic number.

It is an amenable number.

298691369 is a deficient number, since it is larger than the sum of its proper divisors (1).

298691369 is an equidigital number, since it uses as much as digits as its factorization.

298691369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1259712, while the sum is 53.

The square root of 298691369 is about 17282.6898658745. The cubic root of 298691369 is about 668.4581527486.

The spelling of 298691369 in words is "two hundred ninety-eight million, six hundred ninety-one thousand, three hundred sixty-nine".