1091696 has 30 divisors (see below), whose sum is σ = 2216376. Its totient is φ = 520800.

The previous prime is 1091687. The next prime is 1091711. The reversal of 1091696 is 6961901.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15341 + ... + 15411.

2^1091696 is an apocalyptic number.

1091696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1091696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1108188).

1091696 is an abundant number, since it is smaller than the sum of its proper divisors (1124680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1091696 is an equidigital number, since it uses as much as digits as its factorization.

1091696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141 (or 104 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 1091696 is about 1044.8425718739. The cubic root of 1091696 is about 102.9675959273.

The spelling of 1091696 in words is "one million, ninety-one thousand, six hundred ninety-six".