849687 has 8 divisors (see below), whose sum is σ = 1143936. Its totient is φ = 560952.

The previous prime is 849649. The next prime is 849691. The reversal of 849687 is 786948.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 849687 - 2¹⁵ = 816919 is a prime.

849687 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (849587) 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 7 ways as a sum of consecutive naturals, for example, 1003 + ... + 1644.

It is an arithmetic number, because the mean of its divisors is an integer number (142992).

2⁸⁴⁹⁶⁸⁷ is an apocalyptic number.

849687 is a deficient number, since it is larger than the sum of its proper divisors (294249).

849687 is a wasteful number, since it uses less digits than its factorization.

849687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2757.

The product of its digits is 96768, while the sum is 42.

The square root of 849687 is about 921.7846820164. The cubic root of 849687 is about 94.7151950378.

The spelling of 849687 in words is "eight hundred forty-nine thousand, six hundred eighty-seven".