847849 has 8 divisors (see below), whose sum is σ = 893952. Its totient is φ = 802560.

The previous prime is 847817. The next prime is 847853. The reversal of 847849 is 948748.

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 847849 - 2⁵ = 847817 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (847549) 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, 4297 + ... + 4489.

It is an arithmetic number, because the mean of its divisors is an integer number (111744).

2⁸⁴⁷⁸⁴⁹ is an apocalyptic number.

It is an amenable number.

847849 is a deficient number, since it is larger than the sum of its proper divisors (46103).

847849 is a wasteful number, since it uses less digits than its factorization.

847849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407.

The product of its digits is 64512, while the sum is 40.

The square root of 847849 is about 920.7871632468. The cubic root of 847849 is about 94.6468513597.

The spelling of 847849 in words is "eight hundred forty-seven thousand, eight hundred forty-nine".