89036443 has 4 divisors (see below), whose sum is σ = 89055328. Its totient is φ = 89017560.

The previous prime is 89036407. The next prime is 89036509. The reversal of 89036443 is 34463098.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 34463098 = 2 ⋅17231549.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89036443 is a prime.

It is a super-4 number, since 4×89036443⁴ (a number of 33 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89030443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4213 + ... + 13993.

It is an arithmetic number, because the mean of its divisors is an integer number (22263832).

Almost surely, 2^89036443 is an apocalyptic number.

89036443 is a deficient number, since it is larger than the sum of its proper divisors (18885).

89036443 is an equidigital number, since it uses as much as digits as its factorization.

89036443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18884.

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 89036443 is about 9435.9124095129. The cubic root of 89036443 is about 446.5354408327.

The spelling of 89036443 in words is "eighty-nine million, thirty-six thousand, four hundred forty-three".