1968871 has 2 divisors, whose sum is σ = 1968872. Its totient is φ = 1968870.

The previous prime is 1968853. The next prime is 1968899. The reversal of 1968871 is 1788691.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1968871 - 2⁹ = 1968359 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1966871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 984435 + 984436.

It is an arithmetic number, because the mean of its divisors is an integer number (984436).

2^1968871 is an apocalyptic number.

1968871 is a deficient number, since it is larger than the sum of its proper divisors (1).

1968871 is an equidigital number, since it uses as much as digits as its factorization.

1968871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 40.

The square root of 1968871 is about 1403.1646375248. The cubic root of 1968871 is about 125.3350159789.

The spelling of 1968871 in words is "one million, nine hundred sixty-eight thousand, eight hundred seventy-one".