99866315 has 4 divisors (see below), whose sum is σ = 119839584. Its totient is φ = 79893048.

The previous prime is 99866311. The next prime is 99866321. The reversal of 99866315 is 51366899.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 99866315 - 2² = 99866311 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 99866315.

It is not an unprimeable number, because it can be changed into a prime (99866311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9986627 + ... + 9986636.

It is an arithmetic number, because the mean of its divisors is an integer number (29959896).

Almost surely, 2^99866315 is an apocalyptic number.

99866315 is a deficient number, since it is larger than the sum of its proper divisors (19973269).

99866315 is a wasteful number, since it uses less digits than its factorization.

99866315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19973268.

The product of its digits is 349920, while the sum is 47.

The square root of 99866315 is about 9993.3135145456. The cubic root of 99866315 is about 463.9519541884.

The spelling of 99866315 in words is "ninety-nine million, eight hundred sixty-six thousand, three hundred fifteen".