2071687 has 2 divisors, whose sum is σ = 2071688. Its totient is φ = 2071686.

The previous prime is 2071681. The next prime is 2071711. The reversal of 2071687 is 7861702.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2071687 - 2¹⁵ = 2038919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2071681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1035843 + 1035844.

It is an arithmetic number, because the mean of its divisors is an integer number (1035844).

2^2071687 is an apocalyptic number.

2071687 is a deficient number, since it is larger than the sum of its proper divisors (1).

2071687 is an equidigital number, since it uses as much as digits as its factorization.

2071687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 2071687 is about 1439.3356106204. The cubic root of 2071687 is about 127.4798020036.

The spelling of 2071687 in words is "two million, seventy-one thousand, six hundred eighty-seven".