1066009 has 4 divisors (see below), whose sum is σ = 1218304.
Its totient is φ = 913716.
The previous prime is 1066001. The next prime is 1066031. The reversal of 1066009 is 9006601.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 1066009 - 23 = 1066001 is a prime.
It is a super-2 number, since 2×10660092 = 2272750376162, which contains 22 as substring.
It is a Duffinian number.
1066009 is a lucky number.
It is a plaindrome in base 11.
It is not an unprimeable number, because it can be changed into a prime (1066001) 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, 76137 + ... + 76150.
It is an arithmetic number, because the mean of its divisors is an integer number (304576).
21066009 is an apocalyptic number.
It is an amenable number.
1066009 is a deficient number, since it is larger than the sum of its proper divisors (152295).
1066009 is an equidigital number, since it uses as much as digits as its factorization.
1066009 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 152294.
The product of its (nonzero) digits is 324, while the sum is 22.
The square root of 1066009 is about 1032.4771183905.
The cubic root of 1066009 is about 102.1535876615.
The spelling of 1066009 in words is "one million, sixty-six thousand, nine".