11839985 has 8 divisors (see below), whose sum is σ = 14666496. Its totient is φ = 9166320.

The previous prime is 11839979. The next prime is 11839991. The reversal of 11839985 is 58993811.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11839979) and next prime (11839991).

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

It is not a de Polignac number, because 11839985 - 2¹⁴ = 11823601 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 38039 + ... + 38348.

It is an arithmetic number, because the mean of its divisors is an integer number (1833312).

Almost surely, 2^11839985 is an apocalyptic number.

It is an amenable number.

11839985 is a deficient number, since it is larger than the sum of its proper divisors (2826511).

11839985 is an equidigital number, since it uses as much as digits as its factorization.

11839985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76423.

The product of its digits is 77760, while the sum is 44.

The square root of 11839985 is about 3440.9279271731. The cubic root of 11839985 is about 227.9206723618.

The spelling of 11839985 in words is "eleven million, eight hundred thirty-nine thousand, nine hundred eighty-five".