89405143 has 4 divisors (see below), whose sum is σ = 89428320. Its totient is φ = 89381968.

The previous prime is 89405123. The next prime is 89405149. The reversal of 89405143 is 34150498.

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

It is a cyclic number.

It is not a de Polignac number, because 89405143 - 2⁵ = 89405111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 89405099 and 89405108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89405149) 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, 4255 + ... + 14032.

It is an arithmetic number, because the mean of its divisors is an integer number (22357080).

Almost surely, 2^89405143 is an apocalyptic number.

89405143 is a deficient number, since it is larger than the sum of its proper divisors (23177).

89405143 is a wasteful number, since it uses less digits than its factorization.

89405143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23176.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 89405143 is about 9455.4292869229. The cubic root of 89405143 is about 447.1509598945.

The spelling of 89405143 in words is "eighty-nine million, four hundred five thousand, one hundred forty-three".