849682664 has 16 divisors (see below), whose sum is σ = 1619273220. Its totient is φ = 417876480.

The previous prime is 849682663. The next prime is 849682681. The reversal of 849682664 is 466286948.

It can be written as a sum of positive squares in 2 ways, for example, as 632120164 + 217562500 = 25142^2 + 14750^2 .

It is not an unprimeable number, because it can be changed into a prime (849682663) 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, 870089 + ... + 871064.

Almost surely, 2^849682664 is an apocalyptic number.

It is an amenable number.

849682664 is a deficient number, since it is larger than the sum of its proper divisors (769590556).

849682664 is a wasteful number, since it uses less digits than its factorization.

849682664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1741220 (or 1741216 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 53.

The square root of 849682664 is about 29149.3166986809. The cubic root of 849682664 is about 947.1503392527.

The spelling of 849682664 in words is "eight hundred forty-nine million, six hundred eighty-two thousand, six hundred sixty-four".