1066791 has 8 divisors (see below), whose sum is σ = 1551744. Its totient is φ = 646520.

The previous prime is 1066789. The next prime is 1066811. The reversal of 1066791 is 1976601.

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

It is a cyclic number.

It is not a de Polignac number, because 1066791 - 2¹ = 1066789 is a prime.

It is a super-2 number, since 2×1066791² = 2276086075362, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16131 + ... + 16196.

It is an arithmetic number, because the mean of its divisors is an integer number (193968).

2^1066791 is an apocalyptic number.

1066791 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1066791 is a deficient number, since it is larger than the sum of its proper divisors (484953).

1066791 is a wasteful number, since it uses less digits than its factorization.

1066791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32341.

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 1066791 is about 1032.8557498509. The cubic root of 1066791 is about 102.1785607402.

The spelling of 1066791 in words is "one million, sixty-six thousand, seven hundred ninety-one".