64267117 has 2 divisors, whose sum is σ = 64267118. Its totient is φ = 64267116.

The previous prime is 64267109. The next prime is 64267121. The reversal of 64267117 is 71176246.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37527876 + 26739241 = 6126^2 + 5171^2 .

It is a cyclic number.

It is not a de Polignac number, because 64267117 - 2³ = 64267109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64267417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32133558 + 32133559.

It is an arithmetic number, because the mean of its divisors is an integer number (32133559).

Almost surely, 2^64267117 is an apocalyptic number.

It is an amenable number.

64267117 is a deficient number, since it is larger than the sum of its proper divisors (1).

64267117 is an equidigital number, since it uses as much as digits as its factorization.

64267117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14112, while the sum is 34.

The square root of 64267117 is about 8016.6774289602. The cubic root of 64267117 is about 400.5557213270. Note that the first 3 decimals are identical.

The spelling of 64267117 in words is "sixty-four million, two hundred sixty-seven thousand, one hundred seventeen".