298605 has 16 divisors (see below), whose sum is σ = 506304. Its totient is φ = 149760.

The previous prime is 298601. The next prime is 298607. The reversal of 298605 is 506892.

It is not a de Polignac number, because 298605 - 2² = 298601 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (298601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 331 + ... + 840.

It is an arithmetic number, because the mean of its divisors is an integer number (31644).

2²⁹⁸⁶⁰⁵ is an apocalyptic number.

It is an amenable number.

298605 is a deficient number, since it is larger than the sum of its proper divisors (207699).

298605 is a wasteful number, since it uses less digits than its factorization.

298605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1196.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 298605 is about 546.4476187156. The cubic root of 298605 is about 66.8393716529.

It can be divided in two parts, 298 and 605, that added together give a triangular number (903 = T₄₂).

The spelling of 298605 in words is "two hundred ninety-eight thousand, six hundred five".