64091017 has 2 divisors, whose sum is σ = 64091018. Its totient is φ = 64091016.

The previous prime is 64090991. The next prime is 64091021. The reversal of 64091017 is 71019046.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54331641 + 9759376 = 7371^2 + 3124^2 .

It is a cyclic number.

It is not a de Polignac number, because 64091017 - 2⁷ = 64090889 is a prime.

It is not a weakly prime, because it can be changed into another prime (64091057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32045508 + 32045509.

It is an arithmetic number, because the mean of its divisors is an integer number (32045509).

Almost surely, 2^64091017 is an apocalyptic number.

It is an amenable number.

64091017 is a deficient number, since it is larger than the sum of its proper divisors (1).

64091017 is an equidigital number, since it uses as much as digits as its factorization.

64091017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 64091017 is about 8005.6865414529. The cubic root of 64091017 is about 400.1895289328.

The spelling of 64091017 in words is "sixty-four million, ninety-one thousand, seventeen".