298865 has 8 divisors (see below), whose sum is σ = 409920. Its totient is φ = 204912.

The previous prime is 298861. The next prime is 298897. The reversal of 298865 is 568892.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 298865 - 2² = 298861 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 298865.

It is not an unprimeable number, because it can be changed into a prime (298861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4235 + ... + 4304.

It is an arithmetic number, because the mean of its divisors is an integer number (51240).

2²⁹⁸⁸⁶⁵ is an apocalyptic number.

It is an amenable number.

298865 is a deficient number, since it is larger than the sum of its proper divisors (111055).

298865 is an equidigital number, since it uses as much as digits as its factorization.

298865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8551.

The product of its digits is 34560, while the sum is 38.

The square root of 298865 is about 546.6854671564. The cubic root of 298865 is about 66.8587653840.

The spelling of 298865 in words is "two hundred ninety-eight thousand, eight hundred sixty-five".