844920099 has 16 divisors (see below), whose sum is σ = 1252458400. Its totient is φ = 562953888.

The previous prime is 844920091. The next prime is 844920103. The reversal of 844920099 is 990029448.

844920099 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 844920099 - 2³ = 844920091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (844920091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44097 + ... + 60285.

It is an arithmetic number, because the mean of its divisors is an integer number (78278650).

Almost surely, 2^844920099 is an apocalyptic number.

844920099 is a deficient number, since it is larger than the sum of its proper divisors (407538301).

844920099 is a wasteful number, since it uses less digits than its factorization.

844920099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18131 (or 18125 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 844920099 is about 29067.5093360267. The cubic root of 844920099 is about 945.3773952447.

The spelling of 844920099 in words is "eight hundred forty-four million, nine hundred twenty thousand, ninety-nine".