1085558 has 8 divisors (see below), whose sum is σ = 1680960. Its totient is φ = 525240.

The previous prime is 1085551. The next prime is 1085587. The reversal of 1085558 is 8555801.

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

It is a super-3 number, since 3×1085558³ = 3837782439940683336, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1085551) 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, 8693 + ... + 8816.

It is an arithmetic number, because the mean of its divisors is an integer number (210120).

2^1085558 is an apocalyptic number.

1085558 is a deficient number, since it is larger than the sum of its proper divisors (595402).

1085558 is a wasteful number, since it uses less digits than its factorization.

1085558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17542.

The product of its (nonzero) digits is 8000, while the sum is 32.

The square root of 1085558 is about 1041.9011469425. The cubic root of 1085558 is about 102.7742566010.

The spelling of 1085558 in words is "one million, eighty-five thousand, five hundred fifty-eight".