64487959 has 2 divisors, whose sum is σ = 64487960. Its totient is φ = 64487958.

The previous prime is 64487923. The next prime is 64487963. The reversal of 64487959 is 95978446.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64487959 - 2⁹ = 64487447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64487459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32243979 + 32243980.

It is an arithmetic number, because the mean of its divisors is an integer number (32243980).

Almost surely, 2^64487959 is an apocalyptic number.

64487959 is a deficient number, since it is larger than the sum of its proper divisors (1).

64487959 is an equidigital number, since it uses as much as digits as its factorization.

64487959 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2177280, while the sum is 52.

The square root of 64487959 is about 8030.4395271990. The cubic root of 64487959 is about 401.0140085446.

The spelling of 64487959 in words is "sixty-four million, four hundred eighty-seven thousand, nine hundred fifty-nine".