298645 has 4 divisors (see below), whose sum is σ = 358380. Its totient is φ = 238912.

The previous prime is 298631. The next prime is 298651. The reversal of 298645 is 546892.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 119716 + 178929 = 346^2 + 423^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-298645 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 298645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29860 + ... + 29869.

It is an arithmetic number, because the mean of its divisors is an integer number (89595).

2²⁹⁸⁶⁴⁵ is an apocalyptic number.

It is an amenable number.

298645 is a deficient number, since it is larger than the sum of its proper divisors (59735).

298645 is an equidigital number, since it uses as much as digits as its factorization.

298645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59734.

The product of its digits is 17280, while the sum is 34.

The square root of 298645 is about 546.4842175214. The cubic root of 298645 is about 66.8423560364.

The spelling of 298645 in words is "two hundred ninety-eight thousand, six hundred forty-five".