2173841 has 4 divisors (see below), whose sum is σ = 2301732. Its totient is φ = 2045952.

The previous prime is 2173819. The next prime is 2173877. The reversal of 2173841 is 1483712.

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 1809025 + 364816 = 1345^2 + 604^2 .

It is a cyclic number.

It is not a de Polignac number, because 2173841 - 2⁶ = 2173777 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2173841.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2173141) 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, 63920 + ... + 63953.

It is an arithmetic number, because the mean of its divisors is an integer number (575433).

2^2173841 is an apocalyptic number.

It is an amenable number.

2173841 is a deficient number, since it is larger than the sum of its proper divisors (127891).

2173841 is a wasteful number, since it uses less digits than its factorization.

2173841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127890.

The product of its digits is 1344, while the sum is 26.

The square root of 2173841 is about 1474.3951302144. The cubic root of 2173841 is about 129.5416005046.

The spelling of 2173841 in words is "two million, one hundred seventy-three thousand, eight hundred forty-one".