99870799 has 8 divisors (see below), whose sum is σ = 114292640. Its totient is φ = 85487616.

The previous prime is 99870787. The next prime is 99870833. The reversal of 99870799 is 99707899.

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 99870799 - 2¹¹ = 99868751 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99870739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3894 + ... + 14659.

It is an arithmetic number, because the mean of its divisors is an integer number (14286580).

Almost surely, 2^99870799 is an apocalyptic number.

99870799 is a deficient number, since it is larger than the sum of its proper divisors (14421841).

99870799 is a wasteful number, since it uses less digits than its factorization.

99870799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19329.

The product of its (nonzero) digits is 2571912, while the sum is 58.

The square root of 99870799 is about 9993.5378620386. The cubic root of 99870799 is about 463.9588979025.

The spelling of 99870799 in words is "ninety-nine million, eight hundred seventy thousand, seven hundred ninety-nine".