996603 has 4 divisors (see below), whose sum is σ = 1328808. Its totient is φ = 664400.

The previous prime is 996601. The next prime is 996617. The reversal of 996603 is 306699.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 306699 = 3 ⋅102233.

It is a cyclic number.

It is not a de Polignac number, because 996603 - 2¹ = 996601 is a prime.

It is a D-number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 996603.

It is not an unprimeable number, because it can be changed into a prime (996601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166098 + ... + 166103.

It is an arithmetic number, because the mean of its divisors is an integer number (332202).

2⁹⁹⁶⁶⁰³ is an apocalyptic number.

996603 is a deficient number, since it is larger than the sum of its proper divisors (332205).

996603 is a wasteful number, since it uses less digits than its factorization.

996603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332204.

The product of its (nonzero) digits is 8748, while the sum is 33.

The square root of 996603 is about 998.3000550937. The cubic root of 996603 is about 99.8866382063.

The spelling of 996603 in words is "nine hundred ninety-six thousand, six hundred three".