849105 has 12 divisors (see below), whose sum is σ = 1471860. Its totient is φ = 452832.

The previous prime is 849103. The next prime is 849119. The reversal of 849105 is 501948.

It can be written as a sum of positive squares in 2 ways, for example, as 627264 + 221841 = 792^2 + 471^2 .

It is not a de Polignac number, because 849105 - 2¹ = 849103 is a prime.

849105 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (849103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9390 + ... + 9479.

It is an arithmetic number, because the mean of its divisors is an integer number (122655).

2⁸⁴⁹¹⁰⁵ is an apocalyptic number.

It is an amenable number.

849105 is a deficient number, since it is larger than the sum of its proper divisors (622755).

849105 is a wasteful number, since it uses less digits than its factorization.

849105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18880 (or 18877 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 849105 is about 921.4689359930. The cubic root of 849105 is about 94.6935647849.

The spelling of 849105 in words is "eight hundred forty-nine thousand, one hundred five".