2087863 has 4 divisors (see below), whose sum is σ = 2093920. Its totient is φ = 2081808.

The previous prime is 2087861. The next prime is 2087879. The reversal of 2087863 is 3687802.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3687802 = 2 ⋅1843901.

It is a cyclic number.

It is not a de Polignac number, because 2087863 - 2¹ = 2087861 is a prime.

It is a super-3 number, since 3×2087863³ = 27304061204347333941, which contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2087861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2478 + ... + 3211.

It is an arithmetic number, because the mean of its divisors is an integer number (523480).

2^2087863 is an apocalyptic number.

2087863 is a deficient number, since it is larger than the sum of its proper divisors (6057).

2087863 is an equidigital number, since it uses as much as digits as its factorization.

2087863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6056.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 2087863 is about 1444.9439435494. The cubic root of 2087863 is about 127.8107350960.

It can be divided in two parts, 2087 and 863, that multiplied together give a palindrome (1801081).

The spelling of 2087863 in words is "two million, eighty-seven thousand, eight hundred sixty-three".