64346287 has 2 divisors, whose sum is σ = 64346288. Its totient is φ = 64346286.

The previous prime is 64346267. The next prime is 64346291. The reversal of 64346287 is 78264346.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64346287 - 2¹⁵ = 64313519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64346237) 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, 32173143 + 32173144.

It is an arithmetic number, because the mean of its divisors is an integer number (32173144).

Almost surely, 2^64346287 is an apocalyptic number.

64346287 is a deficient number, since it is larger than the sum of its proper divisors (1).

64346287 is an equidigital number, since it uses as much as digits as its factorization.

64346287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 40.

The square root of 64346287 is about 8021.6137403891. The cubic root of 64346287 is about 400.7201339896.

It can be divided in two parts, 6434 and 6287, that added together give a palindrome (12721).

The spelling of 64346287 in words is "sixty-four million, three hundred forty-six thousand, two hundred eighty-seven".