849261 has 16 divisors (see below), whose sum is σ = 1330304. Its totient is φ = 471744.

The previous prime is 849253. The next prime is 849271. The reversal of 849261 is 162948.

It is not a de Polignac number, because 849261 - 2³ = 849253 is a prime.

It is a super-2 number, since 2×849261² = 1442488492242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (849221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 231 + ... + 1323.

It is an arithmetic number, because the mean of its divisors is an integer number (83144).

2⁸⁴⁹²⁶¹ is an apocalyptic number.

It is an amenable number.

849261 is a deficient number, since it is larger than the sum of its proper divisors (481043).

849261 is a wasteful number, since it uses less digits than its factorization.

849261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140.

The product of its digits is 3456, while the sum is 30.

The square root of 849261 is about 921.5535795601. The cubic root of 849261 is about 94.6993635540.

It can be divided in two parts, 84 and 9261, that multiplied together give a square (777924 = 882²).

The spelling of 849261 in words is "eight hundred forty-nine thousand, two hundred sixty-one".