298615 has 4 divisors (see below), whose sum is σ = 358344. Its totient is φ = 238888.

The previous prime is 298607. The next prime is 298621. The reversal of 298615 is 516892.

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 298615 - 2³ = 298607 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 29857 + ... + 29866.

It is an arithmetic number, because the mean of its divisors is an integer number (89586).

2²⁹⁸⁶¹⁵ is an apocalyptic number.

298615 is a deficient number, since it is larger than the sum of its proper divisors (59729).

298615 is an equidigital number, since it uses as much as digits as its factorization.

298615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59728.

The product of its digits is 4320, while the sum is 31.

The square root of 298615 is about 546.4567686469. The cubic root of 298615 is about 66.8401177738.

The spelling of 298615 in words is "two hundred ninety-eight thousand, six hundred fifteen".