2103664 has 10 divisors (see below), whose sum is σ = 4075880. Its totient is φ = 1051824.

The previous prime is 2103653. The next prime is 2103667. The reversal of 2103664 is 4663012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65724 + ... + 65755.

It is an arithmetic number, because the mean of its divisors is an integer number (407588).

2^2103664 is an apocalyptic number.

It is an amenable number.

2103664 is a deficient number, since it is larger than the sum of its proper divisors (1972216).

2103664 is a wasteful number, since it uses less digits than its factorization.

2103664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131487 (or 131481 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 2103664 is about 1450.4013237721. The cubic root of 2103664 is about 128.1323500840.

Adding to 2103664 its reverse (4663012), we get a palindrome (6766676).

The spelling of 2103664 in words is "two million, one hundred three thousand, six hundred sixty-four".