11626643 has 16 divisors (see below), whose sum is σ = 13854720. Its totient is φ = 9547200.

The previous prime is 11626607. The next prime is 11626673. The reversal of 11626643 is 34662611.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11626643 - 2⁸ = 11626387 is a prime.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11626603) 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 15 ways as a sum of consecutive naturals, for example, 28223 + ... + 28631.

It is an arithmetic number, because the mean of its divisors is an integer number (865920).

Almost surely, 2^11626643 is an apocalyptic number.

11626643 is a deficient number, since it is larger than the sum of its proper divisors (2228077).

11626643 is a wasteful number, since it uses less digits than its factorization.

11626643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578.

The product of its digits is 5184, while the sum is 29.

The square root of 11626643 is about 3409.7863569438. The cubic root of 11626643 is about 226.5434165107.

The spelling of 11626643 in words is "eleven million, six hundred twenty-six thousand, six hundred forty-three".