1000775 has 6 divisors (see below), whose sum is σ = 1240992. Its totient is φ = 800600.

The previous prime is 1000763. The next prime is 1000777. The reversal of 1000775 is 5770001.

It is not a de Polignac number, because 1000775 - 2¹⁴ = 984391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19991 + ... + 20040.

It is an arithmetic number, because the mean of its divisors is an integer number (206832).

2^1000775 is an apocalyptic number.

1000775 is a deficient number, since it is larger than the sum of its proper divisors (240217).

1000775 is an equidigital number, since it uses as much as digits as its factorization.

1000775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40041 (or 40036 counting only the distinct ones).

The product of its (nonzero) digits is 245, while the sum is 20.

The square root of 1000775 is about 1000.3874249510. The cubic root of 1000775 is about 100.0258266626.

Adding to 1000775 its reverse (5770001), we get a palindrome (6770776).

The spelling of 1000775 in words is "one million, seven hundred seventy-five", and thus it is an aban number.