298891 has 4 divisors (see below), whose sum is σ = 300312. Its totient is φ = 297472.

The previous prime is 298861. The next prime is 298897. The reversal of 298891 is 198892.

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

It is a cyclic number.

It is not a de Polignac number, because 298891 - 2¹¹ = 296843 is a prime.

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 298891.

It is not an unprimeable number, because it can be changed into a prime (298897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 325 + ... + 838.

It is an arithmetic number, because the mean of its divisors is an integer number (75078).

2²⁹⁸⁸⁹¹ is an apocalyptic number.

298891 is a deficient number, since it is larger than the sum of its proper divisors (1421).

298891 is a wasteful number, since it uses less digits than its factorization.

298891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1420.

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

The square root of 298891 is about 546.7092463092. The cubic root of 298891 is about 66.8607041384.

Subtracting from 298891 its reverse (198892), we obtain a palindrome (99999).

It can be divided in two parts, 29889 and 1, that added together give a triangular number (29890 = T₂₄₄).

The spelling of 298891 in words is "two hundred ninety-eight thousand, eight hundred ninety-one".