849045 has 24 divisors (see below), whose sum is σ = 1433376. Its totient is φ = 429088.

The previous prime is 849019. The next prime is 849047. The reversal of 849045 is 540948.

It is not a de Polignac number, because 849045 - 2⁸ = 848789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (849047) 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 23 ways as a sum of consecutive naturals, for example, 7882 + ... + 7988.

It is an arithmetic number, because the mean of its divisors is an integer number (59724).

2⁸⁴⁹⁰⁴⁵ is an apocalyptic number.

It is an amenable number.

849045 is a deficient number, since it is larger than the sum of its proper divisors (584331).

849045 is a wasteful number, since it uses less digits than its factorization.

849045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161 (or 138 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 849045 is about 921.4363787045. The cubic root of 849045 is about 94.6913343000.

The spelling of 849045 in words is "eight hundred forty-nine thousand, forty-five".