65872843 has 2 divisors, whose sum is σ = 65872844. Its totient is φ = 65872842.

The previous prime is 65872837. The next prime is 65872879. The reversal of 65872843 is 34827856.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65872843 - 2⁵ = 65872811 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65872843.

It is not a weakly prime, because it can be changed into another prime (65872813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32936421 + 32936422.

It is an arithmetic number, because the mean of its divisors is an integer number (32936422).

Almost surely, 2^65872843 is an apocalyptic number.

65872843 is a deficient number, since it is larger than the sum of its proper divisors (1).

65872843 is an equidigital number, since it uses as much as digits as its factorization.

65872843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 322560, while the sum is 43.

The square root of 65872843 is about 8116.2086592201. The cubic root of 65872843 is about 403.8643039192.

The spelling of 65872843 in words is "sixty-five million, eight hundred seventy-two thousand, eight hundred forty-three".