64377601 has 2 divisors, whose sum is σ = 64377602. Its totient is φ = 64377600.

The previous prime is 64377581. The next prime is 64377611. The reversal of 64377601 is 10677346.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47279376 + 17098225 = 6876^2 + 4135^2 .

It is a cyclic number.

It is not a de Polignac number, because 64377601 - 2⁷ = 64377473 is a prime.

It is not a weakly prime, because it can be changed into another prime (64377611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32188800 + 32188801.

It is an arithmetic number, because the mean of its divisors is an integer number (32188801).

Almost surely, 2^64377601 is an apocalyptic number.

It is an amenable number.

64377601 is a deficient number, since it is larger than the sum of its proper divisors (1).

64377601 is an equidigital number, since it uses as much as digits as its factorization.

64377601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 64377601 is about 8023.5653546288. The cubic root of 64377601 is about 400.7851266820.

The spelling of 64377601 in words is "sixty-four million, three hundred seventy-seven thousand, six hundred one".