242797 has 2 divisors, whose sum is σ = 242798. Its totient is φ = 242796.

The previous prime is 242789. The next prime is 242807. The reversal of 242797 is 797242.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 212521 + 30276 = 461^2 + 174^2 .

242797 is a truncatable prime.

It is a cyclic number.

It is not a de Polignac number, because 242797 - 2³ = 242789 is a prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 2 + 4⁸ + 7² + 2⁹ + 9⁵ + 7⁶ .

It is a nialpdrome in base 12.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242747) 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, 121398 + 121399.

It is an arithmetic number, because the mean of its divisors is an integer number (121399).

2²⁴²⁷⁹⁷ is an apocalyptic number.

It is an amenable number.

242797 is a deficient number, since it is larger than the sum of its proper divisors (1).

242797 is an equidigital number, since it uses as much as digits as its factorization.

242797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7056, while the sum is 31.

The square root of 242797 is about 492.7443556247. The cubic root of 242797 is about 62.3851330186.

The spelling of 242797 in words is "two hundred forty-two thousand, seven hundred ninety-seven".