242817769 has 2 divisors, whose sum is σ = 242817770. Its totient is φ = 242817768.

The previous prime is 242817767. The next prime is 242817811. The reversal of 242817769 is 967718242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162894169 + 79923600 = 12763^2 + 8940^2 .

It is a cyclic number.

It is not a de Polignac number, because 242817769 - 2¹ = 242817767 is a prime.

It is a super-2 number, since 2×242817769² = 117920937884274722, which contains 22 as substring.

Together with 242817767, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (242817763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121408884 + 121408885.

It is an arithmetic number, because the mean of its divisors is an integer number (121408885).

Almost surely, 2^242817769 is an apocalyptic number.

It is an amenable number.

242817769 is a deficient number, since it is larger than the sum of its proper divisors (1).

242817769 is an equidigital number, since it uses as much as digits as its factorization.

242817769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 338688, while the sum is 46.

The square root of 242817769 is about 15582.6111098237. The cubic root of 242817769 is about 623.8691178832.

The spelling of 242817769 in words is "two hundred forty-two million, eight hundred seventeen thousand, seven hundred sixty-nine".