1106661 has 8 divisors (see below), whose sum is σ = 1481760. Its totient is φ = 734672.

The previous prime is 1106653. The next prime is 1106671. The reversal of 1106661 is 1666011.

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 1106661 - 2³ = 1106653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1106621) 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, 250 + ... + 1508.

It is an arithmetic number, because the mean of its divisors is an integer number (185220).

2^1106661 is an apocalyptic number.

It is an amenable number.

1106661 is a deficient number, since it is larger than the sum of its proper divisors (375099).

1106661 is a wasteful number, since it uses less digits than its factorization.

1106661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1555.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 1106661 is about 1051.9795625391. The cubic root of 1106661 is about 103.4359565521.

The spelling of 1106661 in words is "one million, one hundred six thousand, six hundred sixty-one".