64366667 has 2 divisors, whose sum is σ = 64366668. Its totient is φ = 64366666.

The previous prime is 64366609. The next prime is 64366681. The reversal of 64366667 is 76666346.

64366667 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64366667 - 2⁸ = 64366411 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (64366697) 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, 32183333 + 32183334.

It is an arithmetic number, because the mean of its divisors is an integer number (32183334).

Almost surely, 2^64366667 is an apocalyptic number.

64366667 is a deficient number, since it is larger than the sum of its proper divisors (1).

64366667 is an equidigital number, since it uses as much as digits as its factorization.

64366667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 44.

The square root of 64366667 is about 8022.8839577798. The cubic root of 64366667 is about 400.7624353907.

The spelling of 64366667 in words is "sixty-four million, three hundred sixty-six thousand, six hundred sixty-seven".