2321871 has 16 divisors (see below), whose sum is σ = 3252480. Its totient is φ = 1471680.

The previous prime is 2321863. The next prime is 2321881. The reversal of 2321871 is 1781232.

It is not a de Polignac number, because 2321871 - 2³ = 2321863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2321821) 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, 5070 + ... + 5508.

It is an arithmetic number, because the mean of its divisors is an integer number (203280).

2^2321871 is an apocalyptic number.

2321871 is a deficient number, since it is larger than the sum of its proper divisors (930609).

2321871 is a wasteful number, since it uses less digits than its factorization.

2321871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526.

The product of its digits is 672, while the sum is 24.

The square root of 2321871 is about 1523.7686832325. The cubic root of 2321871 is about 132.4176966029.

The spelling of 2321871 in words is "two million, three hundred twenty-one thousand, eight hundred seventy-one".