297998 has 8 divisors (see below), whose sum is σ = 459192. Its totient is φ = 144936.

The previous prime is 297991. The next prime is 298013. The reversal of 297998 is 899792.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (297991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1940 + ... + 2087.

It is an arithmetic number, because the mean of its divisors is an integer number (57399).

2²⁹⁷⁹⁹⁸ is an apocalyptic number.

297998 is a deficient number, since it is larger than the sum of its proper divisors (161194).

297998 is a wasteful number, since it uses less digits than its factorization.

297998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4066.

The product of its digits is 81648, while the sum is 44.

The square root of 297998 is about 545.8919306969. The cubic root of 297998 is about 66.7940508883.

The spelling of 297998 in words is "two hundred ninety-seven thousand, nine hundred ninety-eight".