64633 has 2 divisors, whose sum is σ = 64634. Its totient is φ = 64632.

The previous prime is 64627. The next prime is 64661. The reversal of 64633 is 33646.

64633 is nontrivially palindromic in base 6.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56169 + 8464 = 237^2 + 92^2 .

It is a cyclic number.

It is not a de Polignac number, because 64633 - 2⁵ = 64601 is a prime.

It is a plaindrome in base 13.

It is not a weakly prime, because it can be changed into another prime (64613) 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, 32316 + 32317.

It is an arithmetic number, because the mean of its divisors is an integer number (32317).

2⁶⁴⁶³³ is an apocalyptic number.

It is an amenable number.

64633 is a deficient number, since it is larger than the sum of its proper divisors (1).

64633 is an equidigital number, since it uses as much as digits as its factorization.

64633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 22.

The square root of 64633 is about 254.2302106360. The cubic root of 64633 is about 40.1314425980.

The spelling of 64633 in words is "sixty-four thousand, six hundred thirty-three".