99099445 has 4 divisors (see below), whose sum is σ = 118919340. Its totient is φ = 79279552.

The previous prime is 99099397. The next prime is 99099463. The reversal of 99099445 is 54499099.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54499099 = 73 ⋅746563.

It can be written as a sum of positive squares in 2 ways, for example, as 31102929 + 67996516 = 5577^2 + 8246^2 .

It is a cyclic number.

It is not a de Polignac number, because 99099445 - 2⁷ = 99099317 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9909940 + ... + 9909949.

It is an arithmetic number, because the mean of its divisors is an integer number (29729835).

Almost surely, 2^99099445 is an apocalyptic number.

It is an amenable number.

99099445 is a deficient number, since it is larger than the sum of its proper divisors (19819895).

99099445 is a wasteful number, since it uses less digits than its factorization.

99099445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19819894.

The product of its (nonzero) digits is 524880, while the sum is 49.

The square root of 99099445 is about 9954.8704160325. The cubic root of 99099445 is about 462.7613443813.

The spelling of 99099445 in words is "ninety-nine million, ninety-nine thousand, four hundred forty-five".