89986843 has 2 divisors, whose sum is σ = 89986844. Its totient is φ = 89986842.

The previous prime is 89986837. The next prime is 89986867. The reversal of 89986843 is 34868998.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89986843 is a prime.

It is not a weakly prime, because it can be changed into another prime (89986873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44993421 + 44993422.

It is an arithmetic number, because the mean of its divisors is an integer number (44993422).

Almost surely, 2^89986843 is an apocalyptic number.

89986843 is a deficient number, since it is larger than the sum of its proper divisors (1).

89986843 is an equidigital number, since it uses as much as digits as its factorization.

89986843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2985984, while the sum is 55.

The square root of 89986843 is about 9486.1395203739. The cubic root of 89986843 is about 448.1186358721.

The spelling of 89986843 in words is "eighty-nine million, nine hundred eighty-six thousand, eight hundred forty-three".