2103606 has 12 divisors (see below), whose sum is σ = 4557852. Its totient is φ = 701196.

The previous prime is 2103601. The next prime is 2103611. The reversal of 2103606 is 6063012.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2103601) and next prime (2103611).

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 116867 = 2103606 / (2 + 1 + 0 + 3 + 6 + 0 + 6).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58416 + ... + 58451.

It is an arithmetic number, because the mean of its divisors is an integer number (379821).

2^2103606 is an apocalyptic number.

2103606 is an abundant number, since it is smaller than the sum of its proper divisors (2454246).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2103606 is a wasteful number, since it uses less digits than its factorization.

2103606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116875 (or 116872 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2103606 is about 1450.3813291683. The cubic root of 2103606 is about 128.1311724966.

Adding to 2103606 its reverse (6063012), we get a palindrome (8166618).

The spelling of 2103606 in words is "two million, one hundred three thousand, six hundred six".