984745209 has 24 divisors (see below), whose sum is σ = 1539049248. Its totient is φ = 558405120.

The previous prime is 984745189. The next prime is 984745211. The reversal of 984745209 is 902547489.

984745209 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 984745209 - 2⁸ = 984744953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (984745259) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6312 + ... + 44825.

It is an arithmetic number, because the mean of its divisors is an integer number (64127052).

Almost surely, 2^984745209 is an apocalyptic number.

It is an amenable number.

984745209 is a deficient number, since it is larger than the sum of its proper divisors (554304039).

984745209 is a wasteful number, since it uses less digits than its factorization.

984745209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51285 (or 51278 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The square root of 984745209 is about 31380.6502322689. The cubic root of 984745209 is about 994.8889917654. Note that the first 3 decimals are identical.

The spelling of 984745209 in words is "nine hundred eighty-four million, seven hundred forty-five thousand, two hundred nine".