3861947603 has 8 divisors (see below), whose sum is σ = 4054748880. Its totient is φ = 3673121760.

The previous prime is 3861947599. The next prime is 3861947669. The reversal of 3861947603 is 3067491683.

It is a happy number.

3861947603 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 3861947603 - 2² = 3861947599 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3861937603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 991868 + ... + 995753.

It is an arithmetic number, because the mean of its divisors is an integer number (506843610).

Almost surely, 2^3861947603 is an apocalyptic number.

3861947603 is a deficient number, since it is larger than the sum of its proper divisors (192801277).

3861947603 is a wasteful number, since it uses less digits than its factorization.

3861947603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1987717.

The product of its (nonzero) digits is 653184, while the sum is 47.

The square root of 3861947603 is about 62144.5701811510. The cubic root of 3861947603 is about 1568.9247919648.

The spelling of 3861947603 in words is "three billion, eight hundred sixty-one million, nine hundred forty-seven thousand, six hundred three".