3861000003 has 16 divisors (see below), whose sum is σ = 5964025856. Its totient is φ = 2176061760.

The previous prime is 3860999983. The next prime is 3861000007. The reversal of 3861000003 is 3000001683.

It is not a de Polignac number, because 3861000003 - 2⁶ = 3860999939 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3861000007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1257763 + ... + 1260828.

It is an arithmetic number, because the mean of its divisors is an integer number (372751616).

Almost surely, 2^3861000003 is an apocalyptic number.

3861000003 is a deficient number, since it is larger than the sum of its proper divisors (2103025853).

3861000003 is a wasteful number, since it uses less digits than its factorization.

3861000003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2518674.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 3861000003 is about 62136.9455557642. The cubic root of 3861000003 is about 1568.7964599331.

Adding to 3861000003 its reverse (3000001683), we get a palindrome (6861001686).

The spelling of 3861000003 in words is "three billion, eight hundred sixty-one million, three", and thus it is an aban number.