2102687 has 2 divisors, whose sum is σ = 2102688. Its totient is φ = 2102686.

The previous prime is 2102651. The next prime is 2102693. The reversal of 2102687 is 7862012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2102687 - 2⁶ = 2102623 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2102647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051343 + 1051344.

It is an arithmetic number, because the mean of its divisors is an integer number (1051344).

2^2102687 is an apocalyptic number.

2102687 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102687 is an equidigital number, since it uses as much as digits as its factorization.

2102687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 2102687 is about 1450.0644813249. The cubic root of 2102687 is about 128.1125109381.

Adding to 2102687 its reverse (7862012), we get a palindrome (9964699).

The spelling of 2102687 in words is "two million, one hundred two thousand, six hundred eighty-seven".