3871864403 has 16 divisors (see below), whose sum is σ = 4448250240. Its totient is φ = 3333052800.

The previous prime is 3871864369. The next prime is 3871864411. The reversal of 3871864403 is 3044681783.

It is not a de Polignac number, because 3871864403 - 2⁸ = 3871864147 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3871864453) 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, 770168 + ... + 775178.

It is an arithmetic number, because the mean of its divisors is an integer number (278015640).

Almost surely, 2^3871864403 is an apocalyptic number.

3871864403 is a deficient number, since it is larger than the sum of its proper divisors (576385837).

3871864403 is a wasteful number, since it uses less digits than its factorization.

3871864403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8738.

The product of its (nonzero) digits is 387072, while the sum is 44.

The square root of 3871864403 is about 62224.3071717155. The cubic root of 3871864403 is about 1570.2665514946.

The spelling of 3871864403 in words is "three billion, eight hundred seventy-one million, eight hundred sixty-four thousand, four hundred three".