89520843 has 4 divisors (see below), whose sum is σ = 119361128. Its totient is φ = 59680560.

The previous prime is 89520841. The next prime is 89520859. The reversal of 89520843 is 34802598.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 89520843 - 2¹ = 89520841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89520841) 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 in 3 ways as a sum of consecutive naturals, for example, 14920138 + ... + 14920143.

It is an arithmetic number, because the mean of its divisors is an integer number (29840282).

Almost surely, 2^89520843 is an apocalyptic number.

89520843 is a deficient number, since it is larger than the sum of its proper divisors (29840285).

89520843 is a wasteful number, since it uses less digits than its factorization.

89520843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29840284.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 89520843 is about 9461.5454868642. The cubic root of 89520843 is about 447.3437641087.

The spelling of 89520843 in words is "eighty-nine million, five hundred twenty thousand, eight hundred forty-three".