89145443 has 4 divisors (see below), whose sum is σ = 90476040. Its totient is φ = 87814848.

The previous prime is 89145437. The next prime is 89145479. The reversal of 89145443 is 34454198.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34454198 = 2 ⋅17227099.

It is a cyclic number.

It is not a de Polignac number, because 89145443 - 2⁶ = 89145379 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 89145397 and 89145406.

It is not an unprimeable number, because it can be changed into a prime (89145143) 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, 665198 + ... + 665331.

It is an arithmetic number, because the mean of its divisors is an integer number (22619010).

Almost surely, 2^89145443 is an apocalyptic number.

89145443 is a deficient number, since it is larger than the sum of its proper divisors (1330597).

89145443 is a wasteful number, since it uses less digits than its factorization.

89145443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330596.

The product of its digits is 69120, while the sum is 38.

The square root of 89145443 is about 9441.6864489349. The cubic root of 89145443 is about 446.7175854058.

The spelling of 89145443 in words is "eighty-nine million, one hundred forty-five thousand, four hundred forty-three".