85916843 has 2 divisors, whose sum is σ = 85916844. Its totient is φ = 85916842.

The previous prime is 85916801. The next prime is 85916911. The reversal of 85916843 is 34861958.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85916843 - 2⁸ = 85916587 is a prime.

It is a super-2 number, since 2×85916843² = 14763407822173298, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 85916794 and 85916803.

It is not a weakly prime, because it can be changed into another prime (85916543) 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 as a sum of consecutive naturals, namely, 42958421 + 42958422.

It is an arithmetic number, because the mean of its divisors is an integer number (42958422).

Almost surely, 2^85916843 is an apocalyptic number.

85916843 is a deficient number, since it is larger than the sum of its proper divisors (1).

85916843 is an equidigital number, since it uses as much as digits as its factorization.

85916843 is an odious number, because the sum of its binary digits is odd.

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

The square root of 85916843 is about 9269.1338861838. The cubic root of 85916843 is about 441.2581808251.

The spelling of 85916843 in words is "eighty-five million, nine hundred sixteen thousand, eight hundred forty-three".