301997 has 2 divisors, whose sum is σ = 301998. Its totient is φ = 301996.

The previous prime is 301993. The next prime is 301999. The reversal of 301997 is 799103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 203401 + 98596 = 451^2 + 314^2 .

It is an emirp because it is prime and its reverse (799103) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 301997 - 2² = 301993 is a prime.

Together with 301999, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (301991) 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 as a sum of consecutive naturals, namely, 150998 + 150999.

It is an arithmetic number, because the mean of its divisors is an integer number (150999).

2³⁰¹⁹⁹⁷ is an apocalyptic number.

It is an amenable number.

301997 is a deficient number, since it is larger than the sum of its proper divisors (1).

301997 is an equidigital number, since it uses as much as digits as its factorization.

301997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1701, while the sum is 29.

The square root of 301997 is about 549.5425370251. The cubic root of 301997 is about 67.0915063620.

The spelling of 301997 in words is "three hundred one thousand, nine hundred ninety-seven".