65709443 has 2 divisors, whose sum is σ = 65709444. Its totient is φ = 65709442.

The previous prime is 65709433. The next prime is 65709517. The reversal of 65709443 is 34490756.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65709443 - 2⁸ = 65709187 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65709397 and 65709406.

It is not a weakly prime, because it can be changed into another prime (65709433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32854721 + 32854722.

It is an arithmetic number, because the mean of its divisors is an integer number (32854722).

Almost surely, 2^65709443 is an apocalyptic number.

65709443 is a deficient number, since it is larger than the sum of its proper divisors (1).

65709443 is an equidigital number, since it uses as much as digits as its factorization.

65709443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 65709443 is about 8106.1361325850. The cubic root of 65709443 is about 403.5300940269.

The spelling of 65709443 in words is "sixty-five million, seven hundred nine thousand, four hundred forty-three".