996656 has 20 divisors (see below), whose sum is σ = 1947792. Its totient is φ = 494016.

The previous prime is 996649. The next prime is 996689. The reversal of 996656 is 656699.

996656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 996656.

It is an unprimeable number.

996656 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2486 + ... + 2858.

2⁹⁹⁶⁶⁵⁶ is an apocalyptic number.

It is an amenable number.

996656 is a deficient number, since it is larger than the sum of its proper divisors (951136).

996656 is a wasteful number, since it uses less digits than its factorization.

996656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548 (or 542 counting only the distinct ones).

The product of its digits is 87480, while the sum is 41.

The square root of 996656 is about 998.3265998660. The cubic root of 996656 is about 99.8884088538. Note that the first 3 decimals are identical.

It can be divided in two parts, 9966 and 56, that multiplied together give a triangular number (558096 = T₁₀₅₆).

The spelling of 996656 in words is "nine hundred ninety-six thousand, six hundred fifty-six".