1003693 has 2 divisors, whose sum is σ = 1003694. Its totient is φ = 1003692.

The previous prime is 1003679. The next prime is 1003711. The reversal of 1003693 is 3963001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 751689 + 252004 = 867^2 + 502^2 .

It is a cyclic number.

It is not a de Polignac number, because 1003693 - 2¹⁷ = 872621 is a prime.

It is a super-3 number, since 3×1003693³ = 3033359895339160671, which contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1003193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501846 + 501847.

It is an arithmetic number, because the mean of its divisors is an integer number (501847).

2^1003693 is an apocalyptic number.

It is an amenable number.

1003693 is a deficient number, since it is larger than the sum of its proper divisors (1).

1003693 is an equidigital number, since it uses as much as digits as its factorization.

1003693 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 22.

The square root of 1003693 is about 1001.8447983595. The cubic root of 1003693 is about 100.1229487740.

Adding to 1003693 its reverse (3963001), we get a palindrome (4966694).

The spelling of 1003693 in words is "one million, three thousand, six hundred ninety-three".