89820143 has 4 divisors (see below), whose sum is σ = 102651600. Its totient is φ = 76988688.

The previous prime is 89820131. The next prime is 89820161. The reversal of 89820143 is 34102898.

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 89820143 - 2⁶ = 89820079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89820173) 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, 6415718 + ... + 6415731.

It is an arithmetic number, because the mean of its divisors is an integer number (25662900).

Almost surely, 2^89820143 is an apocalyptic number.

89820143 is a deficient number, since it is larger than the sum of its proper divisors (12831457).

89820143 is a wasteful number, since it uses less digits than its factorization.

89820143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12831456.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 89820143 is about 9477.3489436656. The cubic root of 89820143 is about 447.8417526095.

The spelling of 89820143 in words is "eighty-nine million, eight hundred twenty thousand, one hundred forty-three".