2173982 has 4 divisors (see below), whose sum is σ = 3260976. Its totient is φ = 1086990.

The previous prime is 2173981. The next prime is 2173993. The reversal of 2173982 is 2893712.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2173981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 543494 + ... + 543497.

It is an arithmetic number, because the mean of its divisors is an integer number (815244).

2^2173982 is an apocalyptic number.

2173982 is a deficient number, since it is larger than the sum of its proper divisors (1086994).

2173982 is a wasteful number, since it uses less digits than its factorization.

2173982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086993.

The product of its digits is 6048, while the sum is 32.

The square root of 2173982 is about 1474.4429456578. The cubic root of 2173982 is about 129.5444012263.

The spelling of 2173982 in words is "two million, one hundred seventy-three thousand, nine hundred eighty-two".