856662848 has 14 divisors (see below), whose sum is σ = 1699940466. Its totient is φ = 428331392.

The previous prime is 856662847. The next prime is 856662857. The reversal of 856662848 is 848266658.

It can be written as a sum of positive squares in only one way, i.e., 759994624 + 96668224 = 27568^2 + 9832^2 .

It is a super-2 number, since 2×856662848² = 1467742470286942208, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 856662848.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (856662847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6692615 + ... + 6692742.

It is an arithmetic number, because the mean of its divisors is an integer number (121424319).

Almost surely, 2^856662848 is an apocalyptic number.

It is an amenable number.

856662848 is a deficient number, since it is larger than the sum of its proper divisors (843277618).

856662848 is a wasteful number, since it uses less digits than its factorization.

856662848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13385369 (or 13385359 counting only the distinct ones).

The product of its digits is 4423680, while the sum is 53.

The square root of 856662848 is about 29268.8033236755. The cubic root of 856662848 is about 949.7368977778.

The spelling of 856662848 in words is "eight hundred fifty-six million, six hundred sixty-two thousand, eight hundred forty-eight".