996191 has 8 divisors (see below), whose sum is σ = 1157664. Its totient is φ = 839520.

The previous prime is 996187. The next prime is 996197. The reversal of 996191 is 191699.

996191 = T₅₃₀ + T₅₃₁ + ... + T₅₃₆.

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 996191 - 2² = 996187 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (996197) 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, 740 + ... + 1593.

It is an arithmetic number, because the mean of its divisors is an integer number (144708).

2⁹⁹⁶¹⁹¹ is an apocalyptic number.

996191 is a deficient number, since it is larger than the sum of its proper divisors (161473).

996191 is a wasteful number, since it uses less digits than its factorization.

996191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2401.

The product of its digits is 4374, while the sum is 35.

The square root of 996191 is about 998.0936829777. The cubic root of 996191 is about 99.8728717860.

The spelling of 996191 in words is "nine hundred ninety-six thousand, one hundred ninety-one".