2173998 has 8 divisors (see below), whose sum is σ = 4348008. Its totient is φ = 724664.

The previous prime is 2173993. The next prime is 2174017. The reversal of 2173998 is 8993712.

It is a sphenic number, since it is the product of 3 distinct primes.

2173998 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2173993) 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, 181161 + ... + 181172.

It is an arithmetic number, because the mean of its divisors is an integer number (543501).

2^2173998 is an apocalyptic number.

2173998 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2173998 is a wasteful number, since it uses less digits than its factorization.

2173998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362338.

The product of its digits is 27216, while the sum is 39.

The square root of 2173998 is about 1474.4483714257. The cubic root of 2173998 is about 129.5447190311.

The spelling of 2173998 in words is "two million, one hundred seventy-three thousand, nine hundred ninety-eight".