242797427 has 2 divisors, whose sum is σ = 242797428. Its totient is φ = 242797426.

The previous prime is 242797411. The next prime is 242797603. The reversal of 242797427 is 724797242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242797427 - 2⁴ = 242797411 is a prime.

It is not a weakly prime, because it can be changed into another prime (242797127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121398713 + 121398714.

It is an arithmetic number, because the mean of its divisors is an integer number (121398714).

Almost surely, 2^242797427 is an apocalyptic number.

242797427 is a deficient number, since it is larger than the sum of its proper divisors (1).

242797427 is an equidigital number, since it uses as much as digits as its factorization.

242797427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 395136, while the sum is 44.

The square root of 242797427 is about 15581.9583814102. The cubic root of 242797427 is about 623.8516959017.

The spelling of 242797427 in words is "two hundred forty-two million, seven hundred ninety-seven thousand, four hundred twenty-seven".