1066636 has 12 divisors (see below), whose sum is σ = 1917328. Its totient is φ = 518832.

The previous prime is 1066621. The next prime is 1066643. The reversal of 1066636 is 6366601.

It is a super-2 number, since 2×1066636² = 2275424712992, which contains 22 as substring.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3456 + ... + 3751.

2^1066636 is an apocalyptic number.

It is an amenable number.

1066636 is a deficient number, since it is larger than the sum of its proper divisors (850692).

1066636 is a wasteful number, since it uses less digits than its factorization.

1066636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7248 (or 7246 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 1066636 is about 1032.7807124458. The cubic root of 1066636 is about 102.1736118033.

The spelling of 1066636 in words is "one million, sixty-six thousand, six hundred thirty-six".