64793009 has 2 divisors, whose sum is σ = 64793010. Its totient is φ = 64793008.

The previous prime is 64792999. The next prime is 64793017. The reversal of 64793009 is 90039746.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60403984 + 4389025 = 7772^2 + 2095^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64793009 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (64793809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32396504 + 32396505.

It is an arithmetic number, because the mean of its divisors is an integer number (32396505).

Almost surely, 2^64793009 is an apocalyptic number.

It is an amenable number.

64793009 is a deficient number, since it is larger than the sum of its proper divisors (1).

64793009 is an equidigital number, since it uses as much as digits as its factorization.

64793009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 64793009 is about 8049.4104753081. The cubic root of 64793009 is about 401.6453250676.

The spelling of 64793009 in words is "sixty-four million, seven hundred ninety-three thousand, nine".