11662043 has 2 divisors, whose sum is σ = 11662044. Its totient is φ = 11662042.

The previous prime is 11662039. The next prime is 11662093. The reversal of 11662043 is 34026611.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (34026611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11662043 - 2² = 11662039 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (11662003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5831021 + 5831022.

It is an arithmetic number, because the mean of its divisors is an integer number (5831022).

Almost surely, 2^11662043 is an apocalyptic number.

11662043 is a deficient number, since it is larger than the sum of its proper divisors (1).

11662043 is an equidigital number, since it uses as much as digits as its factorization.

11662043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 11662043 is about 3414.9733527511. The cubic root of 11662043 is about 226.7731048072.

Adding to 11662043 its reverse (34026611), we get a palindrome (45688654).

The spelling of 11662043 in words is "eleven million, six hundred sixty-two thousand, forty-three".