64811 has 2 divisors, whose sum is σ = 64812. Its totient is φ = 64810.

The previous prime is 64793. The next prime is 64817. The reversal of 64811 is 11846.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64811 - 2⁶ = 64747 is a prime.

It is an Ulam number.

It is a plaindrome in base 13.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 64811.

It is not a weakly prime, because it can be changed into another prime (64817) 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, 32405 + 32406.

It is an arithmetic number, because the mean of its divisors is an integer number (32406).

2⁶⁴⁸¹¹ is an apocalyptic number.

64811 is a deficient number, since it is larger than the sum of its proper divisors (1).

64811 is an equidigital number, since it uses as much as digits as its factorization.

64811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 192, while the sum is 20.

The square root of 64811 is about 254.5800463508. The cubic root of 64811 is about 40.1682496425.

The spelling of 64811 in words is "sixty-four thousand, eight hundred eleven".