1085775 has 24 divisors (see below), whose sum is σ = 1857024. Its totient is φ = 559200.

The previous prime is 1085771. The next prime is 1085779. The reversal of 1085775 is 5775801.

It is an interprime number because it is at equal distance from previous prime (1085771) and next prime (1085779).

It is not a de Polignac number, because 1085775 - 2² = 1085771 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1085771) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2092 + ... + 2558.

It is an arithmetic number, because the mean of its divisors is an integer number (77376).

2^1085775 is an apocalyptic number.

1085775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1085775 is a deficient number, since it is larger than the sum of its proper divisors (771249).

1085775 is a wasteful number, since it uses less digits than its factorization.

1085775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511 (or 506 counting only the distinct ones).

The product of its (nonzero) digits is 9800, while the sum is 33.

The square root of 1085775 is about 1042.0052782976. The cubic root of 1085775 is about 102.7811042399.

The spelling of 1085775 in words is "one million, eighty-five thousand, seven hundred seventy-five".