2087823 has 8 divisors (see below), whose sum is σ = 2792368. Its totient is φ = 1387584.

The previous prime is 2087809. The next prime is 2087831. The reversal of 2087823 is 3287802.

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

It is not a de Polignac number, because 2087823 - 2⁴ = 2087807 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2087123) 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, 315 + ... + 2067.

It is an arithmetic number, because the mean of its divisors is an integer number (349046).

2^2087823 is an apocalyptic number.

2087823 is a deficient number, since it is larger than the sum of its proper divisors (704545).

2087823 is a wasteful number, since it uses less digits than its factorization.

2087823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2153.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 2087823 is about 1444.9301021157. The cubic root of 2087823 is about 127.8099188767.

The spelling of 2087823 in words is "two million, eighty-seven thousand, eight hundred twenty-three".