64335487 has 2 divisors, whose sum is σ = 64335488. Its totient is φ = 64335486.

The previous prime is 64335473. The next prime is 64335499. The reversal of 64335487 is 78453346.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64335487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64335407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32167743 + 32167744.

It is an arithmetic number, because the mean of its divisors is an integer number (32167744).

Almost surely, 2^64335487 is an apocalyptic number.

64335487 is a deficient number, since it is larger than the sum of its proper divisors (1).

64335487 is an equidigital number, since it uses as much as digits as its factorization.

64335487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 40.

The square root of 64335487 is about 8020.9405308854. The cubic root of 64335487 is about 400.6977135320.

The spelling of 64335487 in words is "sixty-four million, three hundred thirty-five thousand, four hundred eighty-seven".