297949 has 4 divisors (see below), whose sum is σ = 302464. Its totient is φ = 293436.

The previous prime is 297931. The next prime is 297953. The reversal of 297949 is 949792.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 297949 - 2¹¹ = 295901 is a prime.

It is a Duffinian number.

297949 is a lucky 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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2157 + ... + 2290.

It is an arithmetic number, because the mean of its divisors is an integer number (75616).

2²⁹⁷⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

297949 is a deficient number, since it is larger than the sum of its proper divisors (4515).

297949 is an equidigital number, since it uses as much as digits as its factorization.

297949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4514.

The product of its digits is 40824, while the sum is 40.

The square root of 297949 is about 545.8470481738. The cubic root of 297949 is about 66.7903896916.

The spelling of 297949 in words is "two hundred ninety-seven thousand, nine hundred forty-nine".