3478985 has 8 divisors (see below), whose sum is σ = 4318920. Its totient is φ = 2687104.

The previous prime is 3478949. The next prime is 3478991. The reversal of 3478985 is 5898743.

3478985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4489 + 3474496 = 67^2 + 1864^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3478985 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a plaindrome in base 14.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 11852 + ... + 12141.

It is an arithmetic number, because the mean of its divisors is an integer number (539865).

Almost surely, 2^3478985 is an apocalyptic number.

It is an amenable number.

3478985 is a deficient number, since it is larger than the sum of its proper divisors (839935).

3478985 is a wasteful number, since it uses less digits than its factorization.

3478985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24027.

The product of its digits is 241920, while the sum is 44.

The square root of 3478985 is about 1865.2037422223. The cubic root of 3478985 is about 151.5249625748.

The spelling of 3478985 in words is "three million, four hundred seventy-eight thousand, nine hundred eighty-five".