996783 has 8 divisors (see below), whose sum is σ = 1360128. Its totient is φ = 648984.

The previous prime is 996781. The next prime is 996803. The reversal of 996783 is 387699.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 996783 - 2¹ = 996781 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (996781) 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, 3735 + ... + 3992.

It is an arithmetic number, because the mean of its divisors is an integer number (170016).

2⁹⁹⁶⁷⁸³ is an apocalyptic number.

996783 is a deficient number, since it is larger than the sum of its proper divisors (363345).

996783 is a wasteful number, since it uses less digits than its factorization.

996783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7773.

The product of its digits is 81648, while the sum is 42.

The square root of 996783 is about 998.3902042789. The cubic root of 996783 is about 99.8926514708.

It can be divided in two parts, 99678 and 3, that added together give a triangular number (99681 = T₄₄₆).

The spelling of 996783 in words is "nine hundred ninety-six thousand, seven hundred eighty-three".