65307643 has 2 divisors, whose sum is σ = 65307644. Its totient is φ = 65307642.

The previous prime is 65307611. The next prime is 65307653. The reversal of 65307643 is 34670356.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65307643 - 2⁵ = 65307611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65307599 and 65307608.

It is not a weakly prime, because it can be changed into another prime (65307653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32653821 + 32653822.

It is an arithmetic number, because the mean of its divisors is an integer number (32653822).

Almost surely, 2^65307643 is an apocalyptic number.

65307643 is a deficient number, since it is larger than the sum of its proper divisors (1).

65307643 is an equidigital number, since it uses as much as digits as its factorization.

65307643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 34.

The square root of 65307643 is about 8081.3144351646. The cubic root of 65307643 is about 402.7059101002.

Adding to 65307643 its reverse (34670356), we get a palindrome (99977999).

The spelling of 65307643 in words is "sixty-five million, three hundred seven thousand, six hundred forty-three".