1694393 has 2 divisors, whose sum is σ = 1694394. Its totient is φ = 1694392.

The previous prime is 1694377. The next prime is 1694423. The reversal of 1694393 is 3934961.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1420864 + 273529 = 1192^2 + 523^2 .

It is a cyclic number.

It is not a de Polignac number, because 1694393 - 2⁴ = 1694377 is a prime.

It is not a weakly prime, because it can be changed into another prime (1694353) 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, 847196 + 847197.

It is an arithmetic number, because the mean of its divisors is an integer number (847197).

2^1694393 is an apocalyptic number.

It is an amenable number.

1694393 is a deficient number, since it is larger than the sum of its proper divisors (1).

1694393 is an equidigital number, since it uses as much as digits as its factorization.

1694393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17496, while the sum is 35.

The square root of 1694393 is about 1301.6885188093. The cubic root of 1694393 is about 119.2169617245.

The spelling of 1694393 in words is "one million, six hundred ninety-four thousand, three hundred ninety-three".