2103712 has 36 divisors (see below), whose sum is σ = 4496310. Its totient is φ = 968448.

The previous prime is 2103683. The next prime is 2103713. The reversal of 2103712 is 2173012.

It is a happy number.

2103712 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 767376 + 1336336 = 876^2 + 1156^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (2103713) 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, 5214 + ... + 5602.

2^2103712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2103712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2248155).

2103712 is an abundant number, since it is smaller than the sum of its proper divisors (2392598).

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

2103712 is a wasteful number, since it uses less digits than its factorization.

2103712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425 (or 404 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 2103712 is about 1450.4178708221. The cubic root of 2103712 is about 128.1333246227.

Adding to 2103712 its reverse (2173012), we get a palindrome (4276724).

The spelling of 2103712 in words is "two million, one hundred three thousand, seven hundred twelve".