99866699 has 8 divisors (see below), whose sum is σ = 101816400. Its totient is φ = 97927200.

The previous prime is 99866659. The next prime is 99866707. The reversal of 99866699 is 99666899.

It is a happy number.

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 99866699 - 2¹² = 99862603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99866609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18944 + ... + 23634.

It is an arithmetic number, because the mean of its divisors is an integer number (12727050).

Almost surely, 2^99866699 is an apocalyptic number.

99866699 is a deficient number, since it is larger than the sum of its proper divisors (1949701).

99866699 is a wasteful number, since it uses less digits than its factorization.

99866699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5101.

The product of its digits is 11337408, while the sum is 62.

The square root of 99866699 is about 9993.3327273738. The cubic root of 99866699 is about 463.9525488411.

The spelling of 99866699 in words is "ninety-nine million, eight hundred sixty-six thousand, six hundred ninety-nine".