1066885 has 8 divisors (see below), whose sum is σ = 1285920. Its totient is φ = 849744.

The previous prime is 1066883. The next prime is 1066889. The reversal of 1066885 is 5886601.

It is a happy number.

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 1066885 - 2¹ = 1066883 is a prime.

It is a super-2 number, since 2×1066885² = 2276487206450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1066885.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066883) 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, 1614 + ... + 2176.

It is an arithmetic number, because the mean of its divisors is an integer number (160740).

2^1066885 is an apocalyptic number.

It is an amenable number.

1066885 is a deficient number, since it is larger than the sum of its proper divisors (219035).

1066885 is an equidigital number, since it uses as much as digits as its factorization.

1066885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 1066885 is about 1032.9012537508. The cubic root of 1066885 is about 102.1815617974.

The spelling of 1066885 in words is "one million, sixty-six thousand, eight hundred eighty-five".