838465856 has 14 divisors (see below), whose sum is σ = 1663830810. Its totient is φ = 419232896.

The previous prime is 838465807. The next prime is 838465861. The reversal of 838465856 is 658564838.

It can be written as a sum of positive squares in only one way, i.e., 694849600 + 143616256 = 26360^2 + 11984^2 .

It is a junction number, because it is equal to n+sod(n) for n = 838465798 and 838465807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6550451 + ... + 6550578.

Almost surely, 2^838465856 is an apocalyptic number.

It is an amenable number.

838465856 is a deficient number, since it is larger than the sum of its proper divisors (825364954).

838465856 is a wasteful number, since it uses less digits than its factorization.

838465856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13101041 (or 13101031 counting only the distinct ones).

The product of its digits is 5529600, while the sum is 53.

The square root of 838465856 is about 28956.2748985431. The cubic root of 838465856 is about 942.9640315742.

The spelling of 838465856 in words is "eight hundred thirty-eight million, four hundred sixty-five thousand, eight hundred fifty-six".