2102684 has 6 divisors (see below), whose sum is σ = 3679704. Its totient is φ = 1051340.

The previous prime is 2102651. The next prime is 2102687. The reversal of 2102684 is 4862012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262832 + ... + 262839.

It is an arithmetic number, because the mean of its divisors is an integer number (613284).

2^2102684 is an apocalyptic number.

It is an amenable number.

2102684 is a deficient number, since it is larger than the sum of its proper divisors (1577020).

2102684 is a wasteful number, since it uses less digits than its factorization.

2102684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525675 (or 525673 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 2102684 is about 1450.0634468878. The cubic root of 2102684 is about 128.1124500101.

Adding to 2102684 its reverse (4862012), we get a palindrome (6964696).

The spelling of 2102684 in words is "two million, one hundred two thousand, six hundred eighty-four".