2067851 has 2 divisors, whose sum is σ = 2067852. Its totient is φ = 2067850.

The previous prime is 2067823. The next prime is 2067853. The reversal of 2067851 is 1587602.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2067851 is a prime.

Together with 2067853, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2067853) 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, 1033925 + 1033926.

It is an arithmetic number, because the mean of its divisors is an integer number (1033926).

2^2067851 is an apocalyptic number.

2067851 is a deficient number, since it is larger than the sum of its proper divisors (1).

2067851 is an equidigital number, since it uses as much as digits as its factorization.

2067851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 2067851 is about 1438.0024339340. The cubic root of 2067851 is about 127.4010715366.

Subtracting from 2067851 its reverse (1587602), we obtain a square (480249 = 693²).

The spelling of 2067851 in words is "two million, sixty-seven thousand, eight hundred fifty-one".