298981 has 4 divisors (see below), whose sum is σ = 303264. Its totient is φ = 294700.

The previous prime is 298943. The next prime is 298993. The reversal of 298981 is 189892.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 298981 - 2⁷ = 298853 is a prime.

It is a super-2 number, since 2×298981² = 178779276722, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 298981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (298681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2035 + ... + 2176.

It is an arithmetic number, because the mean of its divisors is an integer number (75816).

2²⁹⁸⁹⁸¹ is an apocalyptic number.

It is an amenable number.

298981 is a deficient number, since it is larger than the sum of its proper divisors (4283).

298981 is an equidigital number, since it uses as much as digits as its factorization.

298981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4282.

The product of its digits is 10368, while the sum is 37.

The square root of 298981 is about 546.7915507760. The cubic root of 298981 is about 66.8674143432.

The spelling of 298981 in words is "two hundred ninety-eight thousand, nine hundred eighty-one".