3887180881 has 4 divisors (see below), whose sum is σ = 3904155700. Its totient is φ = 3870206064.

The previous prime is 3887180879. The next prime is 3887180887. The reversal of 3887180881 is 1880817883.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3004793856 + 882387025 = 54816^2 + 29705^2 .

It is a cyclic number.

It is not a de Polignac number, because 3887180881 - 2¹ = 3887180879 is a prime.

It is a super-2 number, since 2×3887180881² = 30220350403223872322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3887180887) 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 3 ways as a sum of consecutive naturals, for example, 8487066 + ... + 8487523.

It is an arithmetic number, because the mean of its divisors is an integer number (976038925).

Almost surely, 2^3887180881 is an apocalyptic number.

It is an amenable number.

3887180881 is a deficient number, since it is larger than the sum of its proper divisors (16974819).

3887180881 is a wasteful number, since it uses less digits than its factorization.

3887180881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16974818.

The product of its (nonzero) digits is 688128, while the sum is 52.

The square root of 3887180881 is about 62347.2604129484. The cubic root of 3887180881 is about 1572.3344018627.

The spelling of 3887180881 in words is "three billion, eight hundred eighty-seven million, one hundred eighty thousand, eight hundred eighty-one".