89998173235 has 4 divisors (see below), whose sum is σ = 107997807888. Its totient is φ = 71998538584.

The previous prime is 89998173233. The next prime is 89998173263. The reversal of 89998173235 is 53237189998.

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 89998173235 - 2¹ = 89998173233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89998173233) 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, 8999817319 + ... + 8999817328.

It is an arithmetic number, because the mean of its divisors is an integer number (26999451972).

Almost surely, 2^89998173235 is an apocalyptic number.

89998173235 is a deficient number, since it is larger than the sum of its proper divisors (17999634653).

89998173235 is a wasteful number, since it uses less digits than its factorization.

89998173235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17999634652.

The product of its digits is 29393280, while the sum is 64.

The spelling of 89998173235 in words is "eighty-nine billion, nine hundred ninety-eight million, one hundred seventy-three thousand, two hundred thirty-five".