64500377 has 2 divisors, whose sum is σ = 64500378. Its totient is φ = 64500376.

The previous prime is 64500353. The next prime is 64500409. The reversal of 64500377 is 77300546.

64500377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (64500409) can be obtained adding 64500377 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42042256 + 22458121 = 6484^2 + 4739^2 .

It is a cyclic number.

It is not a de Polignac number, because 64500377 - 2⁶ = 64500313 is a prime.

It is not a weakly prime, because it can be changed into another prime (64500277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32250188 + 32250189.

It is an arithmetic number, because the mean of its divisors is an integer number (32250189).

Almost surely, 2^64500377 is an apocalyptic number.

It is an amenable number.

64500377 is a deficient number, since it is larger than the sum of its proper divisors (1).

64500377 is an equidigital number, since it uses as much as digits as its factorization.

64500377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 64500377 is about 8031.2126730650. The cubic root of 64500377 is about 401.0397470567.

The spelling of 64500377 in words is "sixty-four million, five hundred thousand, three hundred seventy-seven".