89171612843 has 4 divisors (see below), whose sum is σ = 89619711600. Its totient is φ = 88723514088.

The previous prime is 89171612837. The next prime is 89171612861. The reversal of 89171612843 is 34821617198.

It is a happy number.

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 89171612843 - 2¹⁰ = 89171611819 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 89171612791 and 89171612800.

It is not an unprimeable number, because it can be changed into a prime (89171615843) 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, 224049080 + ... + 224049477.

It is an arithmetic number, because the mean of its divisors is an integer number (22404927900).

Almost surely, 2^89171612843 is an apocalyptic number.

89171612843 is a deficient number, since it is larger than the sum of its proper divisors (448098757).

89171612843 is a wasteful number, since it uses less digits than its factorization.

89171612843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448098756.

The product of its digits is 580608, while the sum is 50.

The spelling of 89171612843 in words is "eighty-nine billion, one hundred seventy-one million, six hundred twelve thousand, eight hundred forty-three".