2321687 has 8 divisors (see below), whose sum is σ = 2376192. Its totient is φ = 2268000.

The previous prime is 2321677. The next prime is 2321701. The reversal of 2321687 is 7861232.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2321687 - 2⁶ = 2321623 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 (2321647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12737 + ... + 12917.

It is an arithmetic number, because the mean of its divisors is an integer number (297024).

2^2321687 is an apocalyptic number.

2321687 is a deficient number, since it is larger than the sum of its proper divisors (54505).

2321687 is a wasteful number, since it uses less digits than its factorization.

2321687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409.

The product of its digits is 4032, while the sum is 29.

The square root of 2321687 is about 1523.7083054181. The cubic root of 2321687 is about 132.4141986337.

The spelling of 2321687 in words is "two million, three hundred twenty-one thousand, six hundred eighty-seven".