849728864 has 12 divisors (see below), whose sum is σ = 1672903764. Its totient is φ = 424864416.

The previous prime is 849728863. The next prime is 849728903. The reversal of 849728864 is 468827948.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (849728863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13276982 + ... + 13277045.

It is an arithmetic number, because the mean of its divisors is an integer number (139408647).

Almost surely, 2^849728864 is an apocalyptic number.

It is an amenable number.

849728864 is a deficient number, since it is larger than the sum of its proper divisors (823174900).

849728864 is a wasteful number, since it uses less digits than its factorization.

849728864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26554037 (or 26554029 counting only the distinct ones).

The product of its digits is 6193152, while the sum is 56.

The square root of 849728864 is about 29150.1091593153. The cubic root of 849728864 is about 947.1675054860.

The spelling of 849728864 in words is "eight hundred forty-nine million, seven hundred twenty-eight thousand, eight hundred sixty-four".