1066881 has 8 divisors (see below), whose sum is σ = 1471680. Its totient is φ = 686672.

The previous prime is 1066867. The next prime is 1066883. The reversal of 1066881 is 1886601.

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 1066881 - 2⁶ = 1066817 is a prime.

It is a super-2 number, since 2×1066881² = 2276470136322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1066883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6045 + ... + 6218.

It is an arithmetic number, because the mean of its divisors is an integer number (183960).

2^1066881 is an apocalyptic number.

It is an amenable number.

1066881 is a deficient number, since it is larger than the sum of its proper divisors (404799).

1066881 is a wasteful number, since it uses less digits than its factorization.

1066881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12295.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 1066881 is about 1032.8993174555. The cubic root of 1066881 is about 102.1814340964.

The spelling of 1066881 in words is "one million, sixty-six thousand, eight hundred eighty-one".