64368287 has 2 divisors, whose sum is σ = 64368288. Its totient is φ = 64368286.

The previous prime is 64368263. The next prime is 64368301. The reversal of 64368287 is 78286346.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64368287 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64308287) 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, 32184143 + 32184144.

It is an arithmetic number, because the mean of its divisors is an integer number (32184144).

Almost surely, 2^64368287 is an apocalyptic number.

64368287 is a deficient number, since it is larger than the sum of its proper divisors (1).

64368287 is an equidigital number, since it uses as much as digits as its factorization.

64368287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 387072, while the sum is 44.

The square root of 64368287 is about 8022.9849183455. The cubic root of 64368287 is about 400.7657975331.

The spelling of 64368287 in words is "sixty-four million, three hundred sixty-eight thousand, two hundred eighty-seven".