1085997 has 8 divisors (see below), whose sum is σ = 1579680. Its totient is φ = 658160.

The previous prime is 1085989. The next prime is 1086031. The reversal of 1085997 is 7995801.

It is a happy number.

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 1085997 - 2³ = 1085989 is a prime.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1085957) 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, 16422 + ... + 16487.

It is an arithmetic number, because the mean of its divisors is an integer number (197460).

2^1085997 is an apocalyptic number.

It is an amenable number.

1085997 is a deficient number, since it is larger than the sum of its proper divisors (493683).

1085997 is a wasteful number, since it uses less digits than its factorization.

1085997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32923.

The product of its (nonzero) digits is 22680, while the sum is 39.

The square root of 1085997 is about 1042.1117982251. Note that the first 3 decimals coincide. The cubic root of 1085997 is about 102.7881087145.

It can be divided in two parts, 108 and 5997, that added together give a triangular number (6105 = T₁₁₀).

The spelling of 1085997 in words is "one million, eighty-five thousand, nine hundred ninety-seven".