10099986 has 32 divisors (see below), whose sum is σ = 22460928. Its totient is φ = 3006720.

The previous prime is 10099979. The next prime is 10099997. The reversal of 10099986 is 68999001.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 330 + ... + 4506.

It is an arithmetic number, because the mean of its divisors is an integer number (701904).

Almost surely, 2^10099986 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10099986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11230464).

10099986 is an abundant number, since it is smaller than the sum of its proper divisors (12360942).

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

10099986 is a wasteful number, since it uses less digits than its factorization.

10099986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4226.

The product of its (nonzero) digits is 34992, while the sum is 42.

The square root of 10099986 is about 3178.0475138047. The cubic root of 10099986 is about 216.1591334189.

The spelling of 10099986 in words is "ten million, ninety-nine thousand, nine hundred eighty-six".