64083809 has 2 divisors, whose sum is σ = 64083810. Its totient is φ = 64083808.

The previous prime is 64083797. The next prime is 64083821. The reversal of 64083809 is 90838046.

It is a balanced prime because it is at equal distance from previous prime (64083797) and next prime (64083821).

It can be written as a sum of positive squares in only one way, i.e., 59243809 + 4840000 = 7697^2 + 2200^2 .

It is a cyclic number.

It is not a de Polignac number, because 64083809 - 2¹² = 64079713 is a prime.

It is not a weakly prime, because it can be changed into another prime (64083839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32041904 + 32041905.

It is an arithmetic number, because the mean of its divisors is an integer number (32041905).

Almost surely, 2^64083809 is an apocalyptic number.

It is an amenable number.

64083809 is a deficient number, since it is larger than the sum of its proper divisors (1).

64083809 is an equidigital number, since it uses as much as digits as its factorization.

64083809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 64083809 is about 8005.2363487907. The cubic root of 64083809 is about 400.1745259240.

The spelling of 64083809 in words is "sixty-four million, eighty-three thousand, eight hundred nine".