99087199 has 4 divisors (see below), whose sum is σ = 99171864. Its totient is φ = 99002536.

The previous prime is 99087193. The next prime is 99087217. The reversal of 99087199 is 99178099.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99178099 = 257 ⋅385907.

It is a cyclic number.

It is not a de Polignac number, because 99087199 - 2¹⁷ = 98956127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99087193) 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, 40552 + ... + 42925.

It is an arithmetic number, because the mean of its divisors is an integer number (24792966).

Almost surely, 2^99087199 is an apocalyptic number.

99087199 is a deficient number, since it is larger than the sum of its proper divisors (84665).

99087199 is a wasteful number, since it uses less digits than its factorization.

99087199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84664.

The product of its (nonzero) digits is 367416, while the sum is 52.

The square root of 99087199 is about 9954.2553212182. The cubic root of 99087199 is about 462.7422820180.

The spelling of 99087199 in words is "ninety-nine million, eighty-seven thousand, one hundred ninety-nine".