848209905 has 24 divisors (see below), whose sum is σ = 1470925248. Its totient is φ = 452164896.

The previous prime is 848209903. The next prime is 848209909. The reversal of 848209905 is 509902848.

It is not a de Polignac number, because 848209905 - 2¹ = 848209903 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (848209903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 153114 + ... + 158556.

It is an arithmetic number, because the mean of its divisors is an integer number (61288552).

Almost surely, 2^848209905 is an apocalyptic number.

It is an amenable number.

848209905 is a deficient number, since it is larger than the sum of its proper divisors (622715343).

848209905 is a wasteful number, since it uses less digits than its factorization.

848209905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8917 (or 8914 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 848209905 is about 29124.0434177674. The cubic root of 848209905 is about 946.6027893789.

The spelling of 848209905 in words is "eight hundred forty-eight million, two hundred nine thousand, nine hundred five".