849545 has 4 divisors (see below), whose sum is σ = 1019460. Its totient is φ = 679632.

The previous prime is 849539. The next prime is 849571. The reversal of 849545 is 545948.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 170569 + 678976 = 413^2 + 824^2 .

It is a cyclic number.

It is not a de Polignac number, because 849545 - 2⁶ = 849481 is a prime.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 849545.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 84950 + ... + 84959.

It is an arithmetic number, because the mean of its divisors is an integer number (254865).

2⁸⁴⁹⁵⁴⁵ is an apocalyptic number.

It is an amenable number.

849545 is a deficient number, since it is larger than the sum of its proper divisors (169915).

849545 is a wasteful number, since it uses less digits than its factorization.

849545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169914.

The product of its digits is 28800, while the sum is 35.

The square root of 849545 is about 921.7076543026. The cubic root of 849545 is about 94.7099184646.

The spelling of 849545 in words is "eight hundred forty-nine thousand, five hundred forty-five".