11662743 has 4 divisors (see below), whose sum is σ = 15550328. Its totient is φ = 7775160.

The previous prime is 11662711. The next prime is 11662769. The reversal of 11662743 is 34726611.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11662743 - 2⁵ = 11662711 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11662743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11662043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1943788 + ... + 1943793.

It is an arithmetic number, because the mean of its divisors is an integer number (3887582).

Almost surely, 2^11662743 is an apocalyptic number.

11662743 is a deficient number, since it is larger than the sum of its proper divisors (3887585).

11662743 is an equidigital number, since it uses as much as digits as its factorization.

11662743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3887584.

The product of its digits is 6048, while the sum is 30.

The square root of 11662743 is about 3415.0758410319. The cubic root of 11662743 is about 226.7776419767. Note that the first 3 decimals are identical.

The spelling of 11662743 in words is "eleven million, six hundred sixty-two thousand, seven hundred forty-three".