10439985 has 8 divisors (see below), whose sum is σ = 16704000. Its totient is φ = 5567984.

The previous prime is 10439981. The next prime is 10440011. The reversal of 10439985 is 58993401.

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 10439985 - 2² = 10439981 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10439981) 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, 347985 + ... + 348014.

It is an arithmetic number, because the mean of its divisors is an integer number (2088000).

Almost surely, 2^10439985 is an apocalyptic number.

10439985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10439985 is a deficient number, since it is larger than the sum of its proper divisors (6264015).

10439985 is an equidigital number, since it uses as much as digits as its factorization.

10439985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696007.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 10439985 is about 3231.0965630881. The cubic root of 10439985 is about 218.5579582576.

The spelling of 10439985 in words is "ten million, four hundred thirty-nine thousand, nine hundred eighty-five".