1973903 has 2 divisors, whose sum is σ = 1973904. Its totient is φ = 1973902.

The previous prime is 1973897. The next prime is 1973911. The reversal of 1973903 is 3093791.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1973903 - 2¹⁴ = 1957519 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1973903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1973203) 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, 986951 + 986952.

It is an arithmetic number, because the mean of its divisors is an integer number (986952).

2^1973903 is an apocalyptic number.

1973903 is a deficient number, since it is larger than the sum of its proper divisors (1).

1973903 is an equidigital number, since it uses as much as digits as its factorization.

1973903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5103, while the sum is 32.

The square root of 1973903 is about 1404.9565829591. The cubic root of 1973903 is about 125.4417013608.

The spelling of 1973903 in words is "one million, nine hundred seventy-three thousand, nine hundred three".