2321671 has 4 divisors (see below), whose sum is σ = 2532744. Its totient is φ = 2110600.

The previous prime is 2321647. The next prime is 2321677. The reversal of 2321671 is 1761232.

2321671 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 2321671 - 2⁹ = 2321159 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 (2321677) 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, 105520 + ... + 105541.

It is an arithmetic number, because the mean of its divisors is an integer number (633186).

2^2321671 is an apocalyptic number.

2321671 is a deficient number, since it is larger than the sum of its proper divisors (211073).

2321671 is a wasteful number, since it uses less digits than its factorization.

2321671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211072.

The product of its digits is 504, while the sum is 22.

The square root of 2321671 is about 1523.7030550603. The cubic root of 2321671 is about 132.4138944537.

It can be divided in two parts, 2321 and 671, that added together give a palindrome (2992).

The spelling of 2321671 in words is "two million, three hundred twenty-one thousand, six hundred seventy-one".