65044247 has 2 divisors, whose sum is σ = 65044248. Its totient is φ = 65044246.

The previous prime is 65044237. The next prime is 65044249. The reversal of 65044247 is 74244056.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65044247 - 2⁶ = 65044183 is a prime.

Together with 65044249, 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 (65044249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32522123 + 32522124.

It is an arithmetic number, because the mean of its divisors is an integer number (32522124).

Almost surely, 2^65044247 is an apocalyptic number.

65044247 is a deficient number, since it is larger than the sum of its proper divisors (1).

65044247 is an equidigital number, since it uses as much as digits as its factorization.

65044247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26880, while the sum is 32.

The square root of 65044247 is about 8065.0013639180. The cubic root of 65044247 is about 402.1637885255.

The spelling of 65044247 in words is "sixty-five million, forty-four thousand, two hundred forty-seven".