89885843 has 2 divisors, whose sum is σ = 89885844. Its totient is φ = 89885842.

The previous prime is 89885821. The next prime is 89885857. The reversal of 89885843 is 34858898.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89885843 - 2⁶ = 89885779 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (89885743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44942921 + 44942922.

It is an arithmetic number, because the mean of its divisors is an integer number (44942922).

Almost surely, 2^89885843 is an apocalyptic number.

89885843 is a deficient number, since it is larger than the sum of its proper divisors (1).

89885843 is an equidigital number, since it uses as much as digits as its factorization.

89885843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2211840, while the sum is 53.

The square root of 89885843 is about 9480.8144692321. The cubic root of 89885843 is about 447.9509190358.

The spelling of 89885843 in words is "eighty-nine million, eight hundred eighty-five thousand, eight hundred forty-three".