11289939 has 4 divisors (see below), whose sum is σ = 15053256. Its totient is φ = 7526624.

The previous prime is 11289937. The next prime is 11289953. The reversal of 11289939 is 93998211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93998211 = 3 ⋅31332737.

It is a cyclic number.

It is not a de Polignac number, because 11289939 - 2¹ = 11289937 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11289939.

It is not an unprimeable number, because it can be changed into a prime (11289937) 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 3 ways as a sum of consecutive naturals, for example, 1881654 + ... + 1881659.

It is an arithmetic number, because the mean of its divisors is an integer number (3763314).

Almost surely, 2^11289939 is an apocalyptic number.

11289939 is a deficient number, since it is larger than the sum of its proper divisors (3763317).

11289939 is an equidigital number, since it uses as much as digits as its factorization.

11289939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3763316.

The product of its digits is 34992, while the sum is 42.

The square root of 11289939 is about 3360.0504460499. The cubic root of 11289939 is about 224.3350839006.

The spelling of 11289939 in words is "eleven million, two hundred eighty-nine thousand, nine hundred thirty-nine".