65783941 has 2 divisors, whose sum is σ = 65783942. Its totient is φ = 65783940.

The previous prime is 65783929. The next prime is 65783957. The reversal of 65783941 is 14938756.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40068900 + 25715041 = 6330^2 + 5071^2 .

It is a cyclic number.

It is not a de Polignac number, because 65783941 - 2⁷ = 65783813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65783911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32891970 + 32891971.

It is an arithmetic number, because the mean of its divisors is an integer number (32891971).

Almost surely, 2^65783941 is an apocalyptic number.

It is an amenable number.

65783941 is a deficient number, since it is larger than the sum of its proper divisors (1).

65783941 is an equidigital number, since it uses as much as digits as its factorization.

65783941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 43.

The square root of 65783941 is about 8110.7299918071. The cubic root of 65783941 is about 403.6825370129.

The spelling of 65783941 in words is "sixty-five million, seven hundred eighty-three thousand, nine hundred forty-one".