2180671 has 4 divisors (see below), whose sum is σ = 2187952. Its totient is φ = 2173392.

The previous prime is 2180627. The next prime is 2180677. The reversal of 2180671 is 1760812.

2180671 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2180671 - 2⁷ = 2180543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2180677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3171 + ... + 3796.

It is an arithmetic number, because the mean of its divisors is an integer number (546988).

2^2180671 is an apocalyptic number.

2180671 is a deficient number, since it is larger than the sum of its proper divisors (7281).

2180671 is an equidigital number, since it uses as much as digits as its factorization.

2180671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7280.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 2180671 is about 1476.7095178132. The cubic root of 2180671 is about 129.6771277619.

The spelling of 2180671 in words is "two million, one hundred eighty thousand, six hundred seventy-one".