34399985 has 4 divisors (see below), whose sum is σ = 41279988. Its totient is φ = 27519984.

The previous prime is 34399921. The next prime is 34399991. The reversal of 34399985 is 58999343.

34399985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8958049 + 25441936 = 2993^2 + 5044^2 .

It is a cyclic number.

It is not a de Polignac number, because 34399985 - 2⁶ = 34399921 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 3 ways as a sum of consecutive naturals, for example, 3439994 + ... + 3440003.

It is an arithmetic number, because the mean of its divisors is an integer number (10319997).

Almost surely, 2^34399985 is an apocalyptic number.

It is an amenable number.

34399985 is a deficient number, since it is larger than the sum of its proper divisors (6880003).

34399985 is an equidigital number, since it uses as much as digits as its factorization.

34399985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6880002.

The product of its digits is 1049760, while the sum is 50.

The square root of 34399985 is about 5865.1500407065. The cubic root of 34399985 is about 325.2266190645.

The spelling of 34399985 in words is "thirty-four million, three hundred ninety-nine thousand, nine hundred eighty-five".