3986447543 has 6 divisors (see below), whose sum is σ = 4316685984. Its totient is φ = 3679797576.

The previous prime is 3986447537. The next prime is 3986447557. The reversal of 3986447543 is 3457446893.

It is not a de Polignac number, because 3986447543 - 2²⁸ = 3718012087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3986447593) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11794055 + ... + 11794392.

It is an arithmetic number, because the mean of its divisors is an integer number (719447664).

Almost surely, 2^3986447543 is an apocalyptic number.

3986447543 is a deficient number, since it is larger than the sum of its proper divisors (330238441).

3986447543 is a wasteful number, since it uses less digits than its factorization.

3986447543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23588473 (or 23588460 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 53.

The square root of 3986447543 is about 63138.3207172950. The cubic root of 3986447543 is about 1585.6062580757.

The spelling of 3986447543 in words is "three billion, nine hundred eighty-six million, four hundred forty-seven thousand, five hundred forty-three".