297983 has 4 divisors (see below), whose sum is σ = 340560. Its totient is φ = 255408.

The previous prime is 297971. The next prime is 297989. The reversal of 297983 is 389792.

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 297983 - 2⁴ = 297967 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (297989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21278 + ... + 21291.

It is an arithmetic number, because the mean of its divisors is an integer number (85140).

2²⁹⁷⁹⁸³ is an apocalyptic number.

297983 is a deficient number, since it is larger than the sum of its proper divisors (42577).

297983 is an equidigital number, since it uses as much as digits as its factorization.

297983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42576.

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

The square root of 297983 is about 545.8781915409. The cubic root of 297983 is about 66.7929301564.

Subtracting 297983 from its reverse (389792), we obtain a square (91809 = 303²).

The spelling of 297983 in words is "two hundred ninety-seven thousand, nine hundred eighty-three".