11406943 has 4 divisors (see below), whose sum is σ = 11427768. Its totient is φ = 11386120.

The previous prime is 11406937. The next prime is 11406961. The reversal of 11406943 is 34960411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34960411 = 547 ⋅63913.

It is a cyclic number.

It is not a de Polignac number, because 11406943 - 2¹⁷ = 11275871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11406443) 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, 9568 + ... + 10693.

It is an arithmetic number, because the mean of its divisors is an integer number (2856942).

Almost surely, 2^11406943 is an apocalyptic number.

11406943 is a deficient number, since it is larger than the sum of its proper divisors (20825).

11406943 is an equidigital number, since it uses as much as digits as its factorization.

11406943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20824.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 11406943 is about 3377.4166162912. The cubic root of 11406943 is about 225.1073923549.

The spelling of 11406943 in words is "eleven million, four hundred six thousand, nine hundred forty-three".