298739 has 4 divisors (see below), whose sum is σ = 341424. Its totient is φ = 256056.

The previous prime is 298733. The next prime is 298757. The reversal of 298739 is 937892.

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 298739 - 2⁴ = 298723 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 298739.

It is not an unprimeable number, because it can be changed into a prime (298733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21332 + ... + 21345.

It is an arithmetic number, because the mean of its divisors is an integer number (85356).

2²⁹⁸⁷³⁹ is an apocalyptic number.

298739 is a deficient number, since it is larger than the sum of its proper divisors (42685).

298739 is an equidigital number, since it uses as much as digits as its factorization.

298739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42684.

The product of its digits is 27216, while the sum is 38.

The square root of 298739 is about 546.5702150685. The cubic root of 298739 is about 66.8493682888.

The spelling of 298739 in words is "two hundred ninety-eight thousand, seven hundred thirty-nine".