3985441903 has 8 divisors (see below), whose sum is σ = 4225352688. Its totient is φ = 3746139264.

The previous prime is 3985441897. The next prime is 3985441913. The reversal of 3985441903 is 3091445893.

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 3985441903 - 2⁹ = 3985441391 is a prime.

It is a super-2 number, since 2×3985441903² = 31767494324376522818, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3985441913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138501 + ... + 164782.

It is an arithmetic number, because the mean of its divisors is an integer number (528169086).

Almost surely, 2^3985441903 is an apocalyptic number.

3985441903 is a deficient number, since it is larger than the sum of its proper divisors (239910785).

3985441903 is a wasteful number, since it uses less digits than its factorization.

3985441903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304073.

The product of its (nonzero) digits is 466560, while the sum is 46.

The square root of 3985441903 is about 63130.3564301676. The cubic root of 3985441903 is about 1585.4729160327.

The spelling of 3985441903 in words is "three billion, nine hundred eighty-five million, four hundred forty-one thousand, nine hundred three".