996091 has 4 divisors (see below), whose sum is σ = 998800. Its totient is φ = 993384.

The previous prime is 996067. The next prime is 996103. The reversal of 996091 is 190699.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 996091 - 2¹⁵ = 963323 is a prime.

It is a super-3 number, since 3×996091³ = 2964956343337144713, which contains 333 as substring.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 996091.

It is not an unprimeable number, because it can be changed into a prime (996001) 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, 696 + ... + 1573.

It is an arithmetic number, because the mean of its divisors is an integer number (249700).

2⁹⁹⁶⁰⁹¹ is an apocalyptic number.

996091 is a deficient number, since it is larger than the sum of its proper divisors (2709).

996091 is a wasteful number, since it uses less digits than its factorization.

996091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2708.

The product of its (nonzero) digits is 4374, while the sum is 34.

The square root of 996091 is about 998.0435862226. The cubic root of 996091 is about 99.8695298494.

It can be divided in two parts, 9 and 96091, that added together give a square (96100 = 310²).

The spelling of 996091 in words is "nine hundred ninety-six thousand, ninety-one".