1996603 has 8 divisors (see below), whose sum is σ = 2328800. Its totient is φ = 1711080.

The previous prime is 1996583. The next prime is 1996609. The reversal of 1996603 is 3066991.

It is not a de Polignac number, because 1996603 - 2⁹ = 1996091 is a prime.

It is a Duffinian number.

1996603 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1996609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2568 + ... + 3253.

It is an arithmetic number, because the mean of its divisors is an integer number (291100).

2^1996603 is an apocalyptic number.

1996603 is a deficient number, since it is larger than the sum of its proper divisors (332197).

1996603 is an frugal number, since it uses more digits than its factorization.

1996603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5842 (or 5828 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 1996603 is about 1413.0120310882. The cubic root of 1996603 is about 125.9207320351.

Subtracting from 1996603 its sum of digits (34), we obtain a square (1996569 = 1413²).

The spelling of 1996603 in words is "one million, nine hundred ninety-six thousand, six hundred three".