849647 has 8 divisors (see below), whose sum is σ = 877344. Its totient is φ = 822528.

The previous prime is 849601. The next prime is 849649. The reversal of 849647 is 746948.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 849647 - 2⁸ = 849391 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 849647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (849649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7463 + ... + 7575.

It is an arithmetic number, because the mean of its divisors is an integer number (109668).

2⁸⁴⁹⁶⁴⁷ is an apocalyptic number.

849647 is a deficient number, since it is larger than the sum of its proper divisors (27697).

849647 is a wasteful number, since it uses less digits than its factorization.

849647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289.

The product of its digits is 48384, while the sum is 38.

The square root of 849647 is about 921.7629847200. The cubic root of 849647 is about 94.7137087387.

The spelling of 849647 in words is "eight hundred forty-nine thousand, six hundred forty-seven".