1026855 has 24 divisors (see below), whose sum is σ = 1875120. Its totient is φ = 518400.

The previous prime is 1026853. The next prime is 1026859. The reversal of 1026855 is 5586201.

It is not a de Polignac number, because 1026855 - 2¹ = 1026853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1026853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 255 + ... + 1455.

It is an arithmetic number, because the mean of its divisors is an integer number (78130).

2^1026855 is an apocalyptic number.

1026855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1026855 is a deficient number, since it is larger than the sum of its proper divisors (848265).

1026855 is a wasteful number, since it uses less digits than its factorization.

1026855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231 (or 1228 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 1026855 is about 1013.3385416533. The cubic root of 1026855 is about 100.8872708869.

It can be divided in two parts, 1026 and 855, that added together give a palindrome (1881).

The spelling of 1026855 in words is "one million, twenty-six thousand, eight hundred fifty-five".