996659 has 8 divisors (see below), whose sum is σ = 1101600. Its totient is φ = 896896.

The previous prime is 996649. The next prime is 996689. The reversal of 996659 is 956699.

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

It is a cyclic number.

It is not a de Polignac number, because 996659 - 2⁸ = 996403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (996629) 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, 884 + ... + 1665.

It is an arithmetic number, because the mean of its divisors is an integer number (137700).

2⁹⁹⁶⁶⁵⁹ is an apocalyptic number.

996659 is a deficient number, since it is larger than the sum of its proper divisors (104941).

996659 is a wasteful number, since it uses less digits than its factorization.

996659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2589.

The product of its digits is 131220, while the sum is 44.

The square root of 996659 is about 998.3281023792. The cubic root of 996659 is about 99.8885090773. Note that the first 3 decimals are identical.

The spelling of 996659 in words is "nine hundred ninety-six thousand, six hundred fifty-nine".