1026845 has 8 divisors (see below), whose sum is σ = 1262520. Its totient is φ = 801280.

The previous prime is 1026833. The next prime is 1026847. The reversal of 1026845 is 5486201.

It can be written as a sum of positive squares in 4 ways, for example, as 676 + 1026169 = 26^2 + 1013^2 .

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

It is not a de Polignac number, because 1026845 - 2⁴ = 1026829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1026847) 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 7 ways as a sum of consecutive naturals, for example, 2300 + ... + 2709.

It is an arithmetic number, because the mean of its divisors is an integer number (157815).

2^1026845 is an apocalyptic number.

It is an amenable number.

1026845 is a deficient number, since it is larger than the sum of its proper divisors (235675).

1026845 is an equidigital number, since it uses as much as digits as its factorization.

1026845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5055.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 1026845 is about 1013.3336074561. Note that the first 3 decimals coincide. The cubic root of 1026845 is about 100.8869433899.

The spelling of 1026845 in words is "one million, twenty-six thousand, eight hundred forty-five".