64417697 has 2 divisors, whose sum is σ = 64417698. Its totient is φ = 64417696.

The previous prime is 64417681. The next prime is 64417723. The reversal of 64417697 is 79671446.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62980096 + 1437601 = 7936^2 + 1199^2 .

It is a cyclic number.

It is not a de Polignac number, because 64417697 - 2⁴ = 64417681 is a prime.

It is not a weakly prime, because it can be changed into another prime (64417637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32208848 + 32208849.

It is an arithmetic number, because the mean of its divisors is an integer number (32208849).

Almost surely, 2^64417697 is an apocalyptic number.

It is an amenable number.

64417697 is a deficient number, since it is larger than the sum of its proper divisors (1).

64417697 is an equidigital number, since it uses as much as digits as its factorization.

64417697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 254016, while the sum is 44.

The square root of 64417697 is about 8026.0636055292. The cubic root of 64417697 is about 400.8683157886.

The spelling of 64417697 in words is "sixty-four million, four hundred seventeen thousand, six hundred ninety-seven".