65428843 has 16 divisors (see below), whose sum is σ = 70329600. Its totient is φ = 60752160.

The previous prime is 65428823. The next prime is 65428861. The reversal of 65428843 is 34882456.

It is a cyclic number.

It is not a de Polignac number, because 65428843 - 2⁹ = 65428331 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65428796 and 65428805.

It is not an unprimeable number, because it can be changed into a prime (65428823) 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 in 15 ways as a sum of consecutive naturals, for example, 88168 + ... + 88906.

It is an arithmetic number, because the mean of its divisors is an integer number (4395600).

Almost surely, 2^65428843 is an apocalyptic number.

65428843 is a deficient number, since it is larger than the sum of its proper divisors (4900757).

65428843 is a wasteful number, since it uses less digits than its factorization.

65428843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882.

The product of its digits is 184320, while the sum is 40.

The square root of 65428843 is about 8088.8097393869. The cubic root of 65428843 is about 402.9548742951.

The spelling of 65428843 in words is "sixty-five million, four hundred twenty-eight thousand, eight hundred forty-three".