99663873 has 8 divisors (see below), whose sum is σ = 139879200. Its totient is φ = 62945568.

The previous prime is 99663857. The next prime is 99663887. The reversal of 99663873 is 37836699.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 99663873 - 2⁴ = 99663857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99663833) 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, 874188 + ... + 874301.

It is an arithmetic number, because the mean of its divisors is an integer number (17484900).

It is a Proth number, since it is equal to 6083 ⋅ 2¹⁴ + 1 and 6083 < 2¹⁴.

Almost surely, 2^99663873 is an apocalyptic number.

It is an amenable number.

99663873 is a deficient number, since it is larger than the sum of its proper divisors (40215327).

99663873 is a wasteful number, since it uses less digits than its factorization.

99663873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1748511.

The product of its digits is 1469664, while the sum is 51.

The square root of 99663873 is about 9983.1795035450. The cubic root of 99663873 is about 463.6382451463.

The spelling of 99663873 in words is "ninety-nine million, six hundred sixty-three thousand, eight hundred seventy-three".