89173062217 has 4 divisors (see below), whose sum is σ = 91348014996. Its totient is φ = 86998109440.

The previous prime is 89173062193. The next prime is 89173062239. The reversal of 89173062217 is 71226037198.

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

It can be written as a sum of positive squares in 2 ways, for example, as 33783910416 + 55389151801 = 183804^2 + 235349^2 .

It is a cyclic number.

It is not a de Polignac number, because 89173062217 - 2⁷ = 89173062089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89173062257) 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, 1087476328 + ... + 1087476409.

It is an arithmetic number, because the mean of its divisors is an integer number (22837003749).

Almost surely, 2^89173062217 is an apocalyptic number.

It is an amenable number.

89173062217 is a deficient number, since it is larger than the sum of its proper divisors (2174952779).

89173062217 is a wasteful number, since it uses less digits than its factorization.

89173062217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2174952778.

The product of its (nonzero) digits is 254016, while the sum is 46.

The spelling of 89173062217 in words is "eighty-nine billion, one hundred seventy-three million, sixty-two thousand, two hundred seventeen".