3986654543 has 2 divisors, whose sum is σ = 3986654544. Its totient is φ = 3986654542.

The previous prime is 3986654491. The next prime is 3986654593. The reversal of 3986654543 is 3454566893.

It is a strong prime.

It is an emirp because it is prime and its reverse (3454566893) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3986654543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3986654593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1993327271 + 1993327272.

It is an arithmetic number, because the mean of its divisors is an integer number (1993327272).

Almost surely, 2^3986654543 is an apocalyptic number.

3986654543 is a deficient number, since it is larger than the sum of its proper divisors (1).

3986654543 is an equidigital number, since it uses as much as digits as its factorization.

3986654543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9331200, while the sum is 53.

The square root of 3986654543 is about 63139.9599540576. The cubic root of 3986654543 is about 1585.6337022944.

The spelling of 3986654543 in words is "three billion, nine hundred eighty-six million, six hundred fifty-four thousand, five hundred forty-three".