64283309 has 2 divisors, whose sum is σ = 64283310. Its totient is φ = 64283308.

The previous prime is 64283299. The next prime is 64283333. The reversal of 64283309 is 90338246.

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., 62758084 + 1525225 = 7922^2 + 1235^2 .

It is a cyclic number.

It is not a de Polignac number, because 64283309 - 2⁴ = 64283293 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64783309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32141654 + 32141655.

It is an arithmetic number, because the mean of its divisors is an integer number (32141655).

Almost surely, 2^64283309 is an apocalyptic number.

It is an amenable number.

64283309 is a deficient number, since it is larger than the sum of its proper divisors (1).

64283309 is an equidigital number, since it uses as much as digits as its factorization.

64283309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 64283309 is about 8017.6872600520. The cubic root of 64283309 is about 400.5893582988.

The spelling of 64283309 in words is "sixty-four million, two hundred eighty-three thousand, three hundred nine".