86663543 has 2 divisors, whose sum is σ = 86663544. Its totient is φ = 86663542.

The previous prime is 86663531. The next prime is 86663557. The reversal of 86663543 is 34536668.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86663543 - 2⁴ = 86663527 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86663543.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86693543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43331771 + 43331772.

It is an arithmetic number, because the mean of its divisors is an integer number (43331772).

Almost surely, 2^86663543 is an apocalyptic number.

86663543 is a deficient number, since it is larger than the sum of its proper divisors (1).

86663543 is an equidigital number, since it uses as much as digits as its factorization.

86663543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 41.

The square root of 86663543 is about 9309.3255931888. The cubic root of 86663543 is about 442.5328146582.

The spelling of 86663543 in words is "eighty-six million, six hundred sixty-three thousand, five hundred forty-three".