298705 has 8 divisors (see below), whose sum is σ = 391104. Its totient is φ = 217200.

The previous prime is 298693. The next prime is 298709. The reversal of 298705 is 507892.

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

It is not a de Polignac number, because 298705 - 2¹⁷ = 167633 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (298709) 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, 2661 + ... + 2770.

It is an arithmetic number, because the mean of its divisors is an integer number (48888).

2²⁹⁸⁷⁰⁵ is an apocalyptic number.

It is an amenable number.

298705 is a deficient number, since it is larger than the sum of its proper divisors (92399).

298705 is a wasteful number, since it uses less digits than its factorization.

298705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5447.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 298705 is about 546.5391111348. The cubic root of 298705 is about 66.8468321120.

The spelling of 298705 in words is "two hundred ninety-eight thousand, seven hundred five".