11659443 has 4 divisors (see below), whose sum is σ = 15545928. Its totient is φ = 7772960.

The previous prime is 11659429. The next prime is 11659447. The reversal of 11659443 is 34495611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34495611 = 3 ⋅11498537.

It is a cyclic number.

It is not a de Polignac number, because 11659443 - 2⁵ = 11659411 is a prime.

It is a super-2 number, since 2×11659443² = 271885222140498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11659447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1943238 + ... + 1943243.

It is an arithmetic number, because the mean of its divisors is an integer number (3886482).

Almost surely, 2^11659443 is an apocalyptic number.

11659443 is a deficient number, since it is larger than the sum of its proper divisors (3886485).

11659443 is an equidigital number, since it uses as much as digits as its factorization.

11659443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3886484.

The product of its digits is 12960, while the sum is 33.

The square root of 11659443 is about 3414.5926550615. The cubic root of 11659443 is about 226.7562508736.

The spelling of 11659443 in words is "eleven million, six hundred fifty-nine thousand, four hundred forty-three".