65063643 has 4 divisors (see below), whose sum is σ = 86751528. Its totient is φ = 43375760.

The previous prime is 65063627. The next prime is 65063653. The reversal of 65063643 is 34636056.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65063643 - 2⁴ = 65063627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65063653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10843938 + ... + 10843943.

It is an arithmetic number, because the mean of its divisors is an integer number (21687882).

Almost surely, 2^65063643 is an apocalyptic number.

65063643 is a deficient number, since it is larger than the sum of its proper divisors (21687885).

65063643 is a wasteful number, since it uses less digits than its factorization.

65063643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21687884.

The product of its (nonzero) digits is 38880, while the sum is 33.

The square root of 65063643 is about 8066.2037539353. The cubic root of 65063643 is about 402.2037592325.

Adding to 65063643 its reverse (34636056), we get a palindrome (99699699).

The spelling of 65063643 in words is "sixty-five million, sixty-three thousand, six hundred forty-three".