1066849 has 4 divisors (see below), whose sum is σ = 1219264. Its totient is φ = 914436.
The previous prime is 1066847. The next prime is 1066859. The reversal of 1066849 is 9486601.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9486601 = 2741 ⋅3461.
It is a cyclic number.
It is not a de Polignac number, because 1066849 - 21 = 1066847 is a prime.
It is a super-2 number, since 2×10668492 = 2276333577602, which contains 22 as substring.
It is a Duffinian number.
1066849 is a lucky number.
It is not an unprimeable number, because it can be changed into a prime (1066847) 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, 76197 + ... + 76210.
It is an arithmetic number, because the mean of its divisors is an integer number (304816).
21066849 is an apocalyptic number.
It is an amenable number.
1066849 is a deficient number, since it is larger than the sum of its proper divisors (152415).
1066849 is an equidigital number, since it uses as much as digits as its factorization.
1066849 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 152414.
The product of its (nonzero) digits is 10368, while the sum is 34.
The square root of 1066849 is about 1032.8838269622. The cubic root of 1066849 is about 102.1804124772.
The spelling of 1066849 in words is "one million, sixty-six thousand, eight hundred forty-nine".
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