849553847 has 4 divisors (see below), whose sum is σ = 854965176. Its totient is φ = 844142520.

The previous prime is 849553841. The next prime is 849553877. The reversal of 849553847 is 748355948.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 849553847 - 2¹⁴ = 849537463 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 (849553841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2705429 + ... + 2705742.

It is an arithmetic number, because the mean of its divisors is an integer number (213741294).

Almost surely, 2^849553847 is an apocalyptic number.

849553847 is a deficient number, since it is larger than the sum of its proper divisors (5411329).

849553847 is a wasteful number, since it uses less digits than its factorization.

849553847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5411328.

The product of its digits is 4838400, while the sum is 53.

The square root of 849553847 is about 29147.1070091013. The cubic root of 849553847 is about 947.1024722718.

The spelling of 849553847 in words is "eight hundred forty-nine million, five hundred fifty-three thousand, eight hundred forty-seven".