1000791 has 18 divisors (see below), whose sum is σ = 1590680. Its totient is φ = 605880.

The previous prime is 1000777. The next prime is 1000793. The reversal of 1000791 is 1970001.

It is not a de Polignac number, because 1000791 - 2¹¹ = 998743 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 (1000793) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 630 + ... + 1548.

2^1000791 is an apocalyptic number.

1000791 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1000791 is a deficient number, since it is larger than the sum of its proper divisors (589889).

1000791 is a wasteful number, since it uses less digits than its factorization.

1000791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947 (or 933 counting only the distinct ones).

The product of its (nonzero) digits is 63, while the sum is 18.

The square root of 1000791 is about 1000.3954218208. The cubic root of 1000791 is about 100.0263597177.

Adding to 1000791 its reverse (1970001), we get a palindrome (2970792).

The spelling of 1000791 in words is "one million, seven hundred ninety-one", and thus it is an aban number.