64683841 has 2 divisors, whose sum is σ = 64683842. Its totient is φ = 64683840.

The previous prime is 64683823. The next prime is 64683859. The reversal of 64683841 is 14838646.

It is a balanced prime because it is at equal distance from previous prime (64683823) and next prime (64683859).

It can be written as a sum of positive squares in only one way, i.e., 44622400 + 20061441 = 6680^2 + 4479^2 .

It is a cyclic number.

It is not a de Polignac number, because 64683841 - 2¹³ = 64675649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64683794 and 64683803.

It is not a weakly prime, because it can be changed into another prime (64680841) 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, 32341920 + 32341921.

It is an arithmetic number, because the mean of its divisors is an integer number (32341921).

Almost surely, 2^64683841 is an apocalyptic number.

It is an amenable number.

64683841 is a deficient number, since it is larger than the sum of its proper divisors (1).

64683841 is an equidigital number, since it uses as much as digits as its factorization.

64683841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 110592, while the sum is 40.

The square root of 64683841 is about 8042.6264988497. The cubic root of 64683841 is about 401.4196244556.

The spelling of 64683841 in words is "sixty-four million, six hundred eighty-three thousand, eight hundred forty-one".