11309939 has 8 divisors (see below), whose sum is σ = 11601408. Its totient is φ = 11020680.

The previous prime is 11309933. The next prime is 11309941. The reversal of 11309939 is 93990311.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11309939 - 2¹⁶ = 11244403 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11309899 and 11309908.

It is not an unprimeable number, because it can be changed into a prime (11309933) 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 7 ways as a sum of consecutive naturals, for example, 15194 + ... + 15920.

It is an arithmetic number, because the mean of its divisors is an integer number (1450176).

Almost surely, 2^11309939 is an apocalyptic number.

11309939 is a deficient number, since it is larger than the sum of its proper divisors (291469).

11309939 is an equidigital number, since it uses as much as digits as its factorization.

11309939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105.

The product of its (nonzero) digits is 6561, while the sum is 35.

The square root of 11309939 is about 3363.0252749571. The cubic root of 11309939 is about 224.4674747813.

The spelling of 11309939 in words is "eleven million, three hundred nine thousand, nine hundred thirty-nine".