64266617 has 2 divisors, whose sum is σ = 64266618. Its totient is φ = 64266616.

The previous prime is 64266583. The next prime is 64266637. The reversal of 64266617 is 71666246.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63664441 + 602176 = 7979^2 + 776^2 .

It is a cyclic number.

It is not a de Polignac number, because 64266617 - 2²⁴ = 47489401 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (64266637) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32133308 + 32133309.

It is an arithmetic number, because the mean of its divisors is an integer number (32133309).

Almost surely, 2^64266617 is an apocalyptic number.

It is an amenable number.

64266617 is a deficient number, since it is larger than the sum of its proper divisors (1).

64266617 is an equidigital number, since it uses as much as digits as its factorization.

64266617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 38.

The square root of 64266617 is about 8016.6462439102. The cubic root of 64266617 is about 400.5546825460.

The spelling of 64266617 in words is "sixty-four million, two hundred sixty-six thousand, six hundred seventeen".