2102663 has 4 divisors (see below), whose sum is σ = 2108880. Its totient is φ = 2096448.

The previous prime is 2102651. The next prime is 2102687. The reversal of 2102663 is 3662012.

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 2102663 - 2⁴ = 2102647 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 (2102623) 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, 2570 + ... + 3287.

It is an arithmetic number, because the mean of its divisors is an integer number (527220).

2^2102663 is an apocalyptic number.

2102663 is a deficient number, since it is larger than the sum of its proper divisors (6217).

2102663 is an equidigital number, since it uses as much as digits as its factorization.

2102663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6216.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 2102663 is about 1450.0562058072. The cubic root of 2102663 is about 128.1120235123.

Adding to 2102663 its reverse (3662012), we get a palindrome (5764675).

The spelling of 2102663 in words is "two million, one hundred two thousand, six hundred sixty-three".