1066771 has 4 divisors (see below), whose sum is σ = 1077232. Its totient is φ = 1056312.

The previous prime is 1066757. The next prime is 1066777. The reversal of 1066771 is 1776601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1776601 = 73 ⋅24337.

It is a cyclic number.

It is not a de Polignac number, because 1066771 - 2⁷ = 1066643 is a prime.

It is a super-2 number, since 2×1066771² = 2276000732882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1066777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5076 + ... + 5281.

It is an arithmetic number, because the mean of its divisors is an integer number (269308).

2^1066771 is an apocalyptic number.

1066771 is a deficient number, since it is larger than the sum of its proper divisors (10461).

1066771 is a wasteful number, since it uses less digits than its factorization.

1066771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10460.

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 1066771 is about 1032.8460679114. The cubic root of 1066771 is about 102.1779221946.

The spelling of 1066771 in words is "one million, sixty-six thousand, seven hundred seventy-one".