2173000 has 64 divisors (see below), whose sum is σ = 5307120. Its totient is φ = 832000.

The previous prime is 2172997. The next prime is 2173001. The reversal of 2173000 is 3712.

It can be written as a sum of positive squares in 8 ways, for example, as 324 + 2172676 = 18^2 + 1474^2 .

It is not an unprimeable number, because it can be changed into a prime (2173001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40974 + ... + 41026.

2^2173000 is an apocalyptic number.

2173000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2173000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2653560).

2173000 is an abundant number, since it is smaller than the sum of its proper divisors (3134120).

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

2173000 is a wasteful number, since it uses less digits than its factorization.

2173000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 42, while the sum is 13.

The square root of 2173000 is about 1474.1099009233. The cubic root of 2173000 is about 129.5248929751.

Adding to 2173000 its reverse (3712), we get a palindrome (2176712).

The spelling of 2173000 in words is "two million, one hundred seventy-three thousand".