1968173 has 2 divisors, whose sum is σ = 1968174. Its totient is φ = 1968172.

The previous prime is 1968163. The next prime is 1968193. The reversal of 1968173 is 3718691.

1968173 is nontrivially palindromic in base 4.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1170724 + 797449 = 1082^2 + 893^2 .

It is a cyclic number.

It is not a de Polignac number, because 1968173 - 2⁴ = 1968157 is a prime.

It is a plaindrome in base 11.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1968103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 984086 + 984087.

It is an arithmetic number, because the mean of its divisors is an integer number (984087).

2^1968173 is an apocalyptic number.

It is an amenable number.

1968173 is a deficient number, since it is larger than the sum of its proper divisors (1).

1968173 is an equidigital number, since it uses as much as digits as its factorization.

1968173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 35.

The square root of 1968173 is about 1402.9158919907. The cubic root of 1968173 is about 125.3202030596.

The spelling of 1968173 in words is "one million, nine hundred sixty-eight thousand, one hundred seventy-three".