1069866 has 36 divisors (see below), whose sum is σ = 2698722. Its totient is φ = 305424.

The previous prime is 1069853. The next prime is 1069867. The reversal of 1069866 is 6689601.

It can be written as a sum of positive squares in only one way, i.e., 1058841 + 11025 = 1029^2 + 105^2 .

It is a super-2 number, since 2×1069866² = 2289226515912, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1069866.

It is not an unprimeable number, because it can be changed into a prime (1069867) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 276 + ... + 1488.

2^1069866 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1069866, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1349361).

1069866 is an abundant number, since it is smaller than the sum of its proper divisors (1628856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1069866 is a wasteful number, since it uses less digits than its factorization.

1069866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235 (or 1225 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 1069866 is about 1034.3432699061. The cubic root of 1069866 is about 102.2766423282.

The spelling of 1069866 in words is "one million, sixty-nine thousand, eight hundred sixty-six".