849684 has 48 divisors (see below), whose sum is σ = 2229696. Its totient is φ = 249600.

The previous prime is 849649. The next prime is 849691. The reversal of 849684 is 486948.

849684 = T₁₀₁ + T₁₀₂ + ... + T₁₈₂.

Its product of digits (55296) is a multiple of the sum of its prime factors (216).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 5334 + ... + 5490.

It is an arithmetic number, because the mean of its divisors is an integer number (46452).

2⁸⁴⁹⁶⁸⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 849684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1114848).

849684 is an abundant number, since it is smaller than the sum of its proper divisors (1380012).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

849684 is a wasteful number, since it uses less digits than its factorization.

849684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216 (or 214 counting only the distinct ones).

The product of its digits is 55296, while the sum is 39.

The square root of 849684 is about 921.7830547369. The cubic root of 849684 is about 94.7150835670.

The spelling of 849684 in words is "eight hundred forty-nine thousand, six hundred eighty-four".