99986143 has 8 divisors (see below), whose sum is σ = 102657456. Its totient is φ = 97344000.

The previous prime is 99986141. The next prime is 99986153. The reversal of 99986143 is 34168999.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 99986143 - 2¹ = 99986141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99986141) 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 7 ways as a sum of consecutive naturals, for example, 258 + ... + 14143.

It is an arithmetic number, because the mean of its divisors is an integer number (12832182).

Almost surely, 2^99986143 is an apocalyptic number.

99986143 is a deficient number, since it is larger than the sum of its proper divisors (2671313).

99986143 is a wasteful number, since it uses less digits than its factorization.

99986143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14585.

The product of its digits is 419904, while the sum is 49.

The square root of 99986143 is about 9999.3071259963. The cubic root of 99986143 is about 464.1374428721.

The spelling of 99986143 in words is "ninety-nine million, nine hundred eighty-six thousand, one hundred forty-three".