89105839 has 4 divisors (see below), whose sum is σ = 93795640. Its totient is φ = 84416040.

The previous prime is 89105837. The next prime is 89105869. The reversal of 89105839 is 93850198.

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 89105839 - 2¹ = 89105837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 89105795 and 89105804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89105837) 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, 2344872 + ... + 2344909.

It is an arithmetic number, because the mean of its divisors is an integer number (23448910).

Almost surely, 2^89105839 is an apocalyptic number.

89105839 is a deficient number, since it is larger than the sum of its proper divisors (4689801).

89105839 is a wasteful number, since it uses less digits than its factorization.

89105839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4689800.

The product of its (nonzero) digits is 77760, while the sum is 43.

The square root of 89105839 is about 9439.5889211342. The cubic root of 89105839 is about 446.6514222787.

The spelling of 89105839 in words is "eighty-nine million, one hundred five thousand, eight hundred thirty-nine".