11056689 has 32 divisors (see below), whose sum is σ = 19712000. Its totient is φ = 5983632.

The previous prime is 11056657. The next prime is 11056693. The reversal of 11056689 is 98665011.

11056689 is a `hidden beast` number, since 1 + 10 + 566 + 89 = 666.

It is not a de Polignac number, because 11056689 - 2⁵ = 11056657 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11056649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2052 + ... + 5130.

It is an arithmetic number, because the mean of its divisors is an integer number (616000).

Almost surely, 2^11056689 is an apocalyptic number.

11056689 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

11056689 is a deficient number, since it is larger than the sum of its proper divisors (8655311).

11056689 is a wasteful number, since it uses less digits than its factorization.

11056689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3114 (or 3108 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 11056689 is about 3325.1599961506. The cubic root of 11056689 is about 222.7794007151.

The spelling of 11056689 in words is "eleven million, fifty-six thousand, six hundred eighty-nine".