849438847 has 8 divisors (see below), whose sum is σ = 914151312. Its totient is φ = 786364800.

The previous prime is 849438841. The next prime is 849438851. The reversal of 849438847 is 748834948.

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 849438847 - 2¹⁹ = 848914559 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 (849438841) 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, 408529 + ... + 410602.

It is an arithmetic number, because the mean of its divisors is an integer number (114268914).

Almost surely, 2^849438847 is an apocalyptic number.

849438847 is a deficient number, since it is larger than the sum of its proper divisors (64712465).

849438847 is a wasteful number, since it uses less digits than its factorization.

849438847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819209.

The product of its digits is 6193152, while the sum is 55.

The square root of 849438847 is about 29145.1341908045. The cubic root of 849438847 is about 947.0597354480.

The spelling of 849438847 in words is "eight hundred forty-nine million, four hundred thirty-eight thousand, eight hundred forty-seven".