247424269 has 2 divisors, whose sum is σ = 247424270. Its totient is φ = 247424268.

The previous prime is 247424267. The next prime is 247424311. The reversal of 247424269 is 962424742.

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., 241958025 + 5466244 = 15555^2 + 2338^2 .

It is a cyclic number.

It is not a de Polignac number, because 247424269 - 2¹ = 247424267 is a prime.

It is a super-2 number, since 2×247424269² = 122437537780368722, which contains 22 as substring.

Together with 247424267, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (247424267) 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, 123712134 + 123712135.

It is an arithmetic number, because the mean of its divisors is an integer number (123712135).

Almost surely, 2^247424269 is an apocalyptic number.

It is an amenable number.

247424269 is a deficient number, since it is larger than the sum of its proper divisors (1).

247424269 is an equidigital number, since it uses as much as digits as its factorization.

247424269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 40.

The square root of 247424269 is about 15729.7256492286. The cubic root of 247424269 is about 627.7895736027.

The spelling of 247424269 in words is "two hundred forty-seven million, four hundred twenty-four thousand, two hundred sixty-nine".