65834891 has 2 divisors, whose sum is σ = 65834892. Its totient is φ = 65834890.

The previous prime is 65834869. The next prime is 65834929. The reversal of 65834891 is 19843856.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65834891 - 2¹⁴ = 65818507 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65834861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32917445 + 32917446.

It is an arithmetic number, because the mean of its divisors is an integer number (32917446).

Almost surely, 2^65834891 is an apocalyptic number.

65834891 is a deficient number, since it is larger than the sum of its proper divisors (1).

65834891 is an equidigital number, since it uses as much as digits as its factorization.

65834891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 44.

The square root of 65834891 is about 8113.8702848887. The cubic root of 65834891 is about 403.7867281844.

The spelling of 65834891 in words is "sixty-five million, eight hundred thirty-four thousand, eight hundred ninety-one".