1996903 has 2 divisors, whose sum is σ = 1996904. Its totient is φ = 1996902.

The previous prime is 1996901. The next prime is 1996933. The reversal of 1996903 is 3096991.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1996903 - 2¹ = 1996901 is a prime.

Together with 1996901, it forms a pair of twin primes.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1996901) 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, 998451 + 998452.

It is an arithmetic number, because the mean of its divisors is an integer number (998452).

2^1996903 is an apocalyptic number.

1996903 is a deficient number, since it is larger than the sum of its proper divisors (1).

1996903 is an equidigital number, since it uses as much as digits as its factorization.

1996903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13122, while the sum is 37.

The square root of 1996903 is about 1413.1181833095. The cubic root of 1996903 is about 125.9270384679.

The spelling of 1996903 in words is "one million, nine hundred ninety-six thousand, nine hundred three".