99986000 has 40 divisors (see below), whose sum is σ = 241770984. Its totient is φ = 39993600.

The previous prime is 99985987. The next prime is 99986011. The reversal of 99986000 is 68999.

It can be written as a sum of positive squares in 4 ways, for example, as 1658944 + 98327056 = 1288^2 + 9916^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 10.

It is a zygodrome in base 4.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22997 + ... + 26996.

Almost surely, 2^99986000 is an apocalyptic number.

It is an amenable number.

99986000 is an abundant number, since it is smaller than the sum of its proper divisors (141784984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99986000 is a wasteful number, since it uses less digits than its factorization.

99986000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50016 (or 50000 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 99986000 is about 9999.2999754983. The cubic root of 99986000 is about 464.1372216025.

The spelling of 99986000 in words is "ninety-nine million, nine hundred eighty-six thousand".