298339661 has 4 divisors (see below), whose sum is σ = 298926300. Its totient is φ = 297753024.

The previous prime is 298339631. The next prime is 298339663. The reversal of 298339661 is 166933892.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 218862436 + 79477225 = 14794^2 + 8915^2 .

It is a cyclic number.

It is not a de Polignac number, because 298339661 - 2¹⁸ = 298077517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (298339663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 292556 + ... + 293573.

It is an arithmetic number, because the mean of its divisors is an integer number (74731575).

Almost surely, 2^298339661 is an apocalyptic number.

It is an amenable number.

298339661 is a deficient number, since it is larger than the sum of its proper divisors (586639).

298339661 is an equidigital number, since it uses as much as digits as its factorization.

298339661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586638.

The product of its digits is 419904, while the sum is 47.

The square root of 298339661 is about 17272.5117165976. The cubic root of 298339661 is about 668.1956806876.

The spelling of 298339661 in words is "two hundred ninety-eight million, three hundred thirty-nine thousand, six hundred sixty-one".