64824289 has 2 divisors, whose sum is σ = 64824290. Its totient is φ = 64824288.

The previous prime is 64824241. The next prime is 64824293. The reversal of 64824289 is 98242846.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58982400 + 5841889 = 7680^2 + 2417^2 .

It is a cyclic number.

It is not a de Polignac number, because 64824289 - 2⁹ = 64823777 is a prime.

It is not a weakly prime, because it can be changed into another prime (64824299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32412144 + 32412145.

It is an arithmetic number, because the mean of its divisors is an integer number (32412145).

Almost surely, 2^64824289 is an apocalyptic number.

It is an amenable number.

64824289 is a deficient number, since it is larger than the sum of its proper divisors (1).

64824289 is an equidigital number, since it uses as much as digits as its factorization.

64824289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 221184, while the sum is 43.

The square root of 64824289 is about 8051.3532402945. The cubic root of 64824289 is about 401.7099485239.

The spelling of 64824289 in words is "sixty-four million, eight hundred twenty-four thousand, two hundred eighty-nine".