849557696 has 56 divisors (see below), whose sum is σ = 1820600880. Its totient is φ = 391007232.

The previous prime is 849557689. The next prime is 849557701. The reversal of 849557696 is 696755948.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 347390 + ... + 349826.

It is an arithmetic number, because the mean of its divisors is an integer number (32510730).

Almost surely, 2^849557696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 849557696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (910300440).

849557696 is an abundant number, since it is smaller than the sum of its proper divisors (971043184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

849557696 is a wasteful number, since it uses less digits than its factorization.

849557696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2881 (or 2871 counting only the distinct ones).

The product of its digits is 16329600, while the sum is 59.

The square root of 849557696 is about 29147.1730361625. The cubic root of 849557696 is about 947.1039025880.

The spelling of 849557696 in words is "eight hundred forty-nine million, five hundred fifty-seven thousand, six hundred ninety-six".