3887147855 has 16 divisors (see below), whose sum is σ = 4714373664. Its totient is φ = 3076698240.

The previous prime is 3887147839. The next prime is 3887147857. The reversal of 3887147855 is 5587417883.

It is not a de Polignac number, because 3887147855 - 2⁴ = 3887147839 is a prime.

It is a super-2 number, since 2×3887147855² = 30219836893262202050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3887147855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3887147857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167384 + ... + 189186.

It is an arithmetic number, because the mean of its divisors is an integer number (294648354).

Almost surely, 2^3887147855 is an apocalyptic number.

3887147855 is a deficient number, since it is larger than the sum of its proper divisors (827225809).

3887147855 is a wasteful number, since it uses less digits than its factorization.

3887147855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22186.

The product of its digits is 7526400, while the sum is 56.

The square root of 3887147855 is about 62346.9955571237. The cubic root of 3887147855 is about 1572.3299489301.

The spelling of 3887147855 in words is "three billion, eight hundred eighty-seven million, one hundred forty-seven thousand, eight hundred fifty-five".