64316489 has 2 divisors, whose sum is σ = 64316490. Its totient is φ = 64316488.

The previous prime is 64316479. The next prime is 64316503. The reversal of 64316489 is 98461346.

64316489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62647225 + 1669264 = 7915^2 + 1292^2 .

It is a cyclic number.

It is not a de Polignac number, because 64316489 - 2²⁰ = 63267913 is a prime.

It is a super-2 number, since 2×64316489² = 8273221514574242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (64316429) 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, 32158244 + 32158245.

It is an arithmetic number, because the mean of its divisors is an integer number (32158245).

Almost surely, 2^64316489 is an apocalyptic number.

It is an amenable number.

64316489 is a deficient number, since it is larger than the sum of its proper divisors (1).

64316489 is an equidigital number, since it uses as much as digits as its factorization.

64316489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 41.

The square root of 64316489 is about 8019.7561683632. The cubic root of 64316489 is about 400.6582681965.

The spelling of 64316489 in words is "sixty-four million, three hundred sixteen thousand, four hundred eighty-nine".