2187323 has 4 divisors (see below), whose sum is σ = 2282448. Its totient is φ = 2092200.

The previous prime is 2187319. The next prime is 2187331. The reversal of 2187323 is 3237812.

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 2187323 - 2² = 2187319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2187292 and 2187301.

It is not an unprimeable number, because it can be changed into a prime (2187343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47528 + ... + 47573.

It is an arithmetic number, because the mean of its divisors is an integer number (570612).

2^2187323 is an apocalyptic number.

2187323 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2187323 is a deficient number, since it is larger than the sum of its proper divisors (95125).

2187323 is an equidigital number, since it uses as much as digits as its factorization.

2187323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95124.

The product of its digits is 2016, while the sum is 26.

The square root of 2187323 is about 1478.9601076432. The cubic root of 2187323 is about 129.8088512272.

The spelling of 2187323 in words is "two million, one hundred eighty-seven thousand, three hundred twenty-three".