64376717 has 2 divisors, whose sum is σ = 64376718. Its totient is φ = 64376716.

The previous prime is 64376659. The next prime is 64376743. The reversal of 64376717 is 71767346.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54257956 + 10118761 = 7366^2 + 3181^2 .

It is a cyclic number.

It is not a de Polignac number, because 64376717 - 2¹⁰ = 64375693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64376797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32188358 + 32188359.

It is an arithmetic number, because the mean of its divisors is an integer number (32188359).

Almost surely, 2^64376717 is an apocalyptic number.

It is an amenable number.

64376717 is a deficient number, since it is larger than the sum of its proper divisors (1).

64376717 is an equidigital number, since it uses as much as digits as its factorization.

64376717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 148176, while the sum is 41.

The square root of 64376717 is about 8023.5102667100. The cubic root of 64376717 is about 400.7832922154.

The spelling of 64376717 in words is "sixty-four million, three hundred seventy-six thousand, seven hundred seventeen".