849553 has 4 divisors (see below), whose sum is σ = 851508. Its totient is φ = 847600.

The previous prime is 849539. The next prime is 849571. The reversal of 849553 is 355948.

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 61009 + 788544 = 247^2 + 888^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-849553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (849523) 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 3 ways as a sum of consecutive naturals, for example, 3 + ... + 1303.

It is an arithmetic number, because the mean of its divisors is an integer number (212877).

2⁸⁴⁹⁵⁵³ is an apocalyptic number.

It is an amenable number.

849553 is a deficient number, since it is larger than the sum of its proper divisors (1955).

849553 is a wasteful number, since it uses less digits than its factorization.

849553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1954.

The product of its digits is 21600, while the sum is 34.

The square root of 849553 is about 921.7119940632. The cubic root of 849553 is about 94.7102157520.

The spelling of 849553 in words is "eight hundred forty-nine thousand, five hundred fifty-three".