65434247 has 2 divisors, whose sum is σ = 65434248. Its totient is φ = 65434246.

The previous prime is 65434223. The next prime is 65434249. The reversal of 65434247 is 74243456.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65434247 - 2¹⁰ = 65433223 is a prime.

Together with 65434249, 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 (65434249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32717123 + 32717124.

It is an arithmetic number, because the mean of its divisors is an integer number (32717124).

Almost surely, 2^65434247 is an apocalyptic number.

65434247 is a deficient number, since it is larger than the sum of its proper divisors (1).

65434247 is an equidigital number, since it uses as much as digits as its factorization.

65434247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 35.

The square root of 65434247 is about 8089.1437742199. The cubic root of 65434247 is about 402.9659678133.

The spelling of 65434247 in words is "sixty-five million, four hundred thirty-four thousand, two hundred forty-seven".