849220868 has 12 divisors (see below), whose sum is σ = 1494348492. Its totient is φ = 422264160.

The previous prime is 849220861. The next prime is 849220901. The reversal of 849220868 is 868022948.

It can be written as a sum of positive squares in 2 ways, for example, as 61183684 + 788037184 = 7822^2 + 28072^2 .

It is a super-3 number, since 3×849220868³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (849220861) 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, 585755 + ... + 587202.

It is an arithmetic number, because the mean of its divisors is an integer number (124529041).

Almost surely, 2^849220868 is an apocalyptic number.

It is an amenable number.

849220868 is a deficient number, since it is larger than the sum of its proper divisors (645127624).

849220868 is a wasteful number, since it uses less digits than its factorization.

849220868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173142 (or 1173140 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 47.

The square root of 849220868 is about 29141.3944072688. The cubic root of 849220868 is about 946.9787185132.

The spelling of 849220868 in words is "eight hundred forty-nine million, two hundred twenty thousand, eight hundred sixty-eight".