838106856 has 48 divisors (see below), whose sum is σ = 2271387300. Its totient is φ = 279182592.

The previous prime is 838106839. The next prime is 838106881. The reversal of 838106856 is 658601838.

It can be written as a sum of positive squares in 2 ways, for example, as 838102500 + 4356 = 28950^2 + 66^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143220 + ... + 148956.

Almost surely, 2^838106856 is an apocalyptic number.

It is an amenable number.

838106856 is an abundant number, since it is smaller than the sum of its proper divisors (1433280444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

838106856 is a wasteful number, since it uses less digits than its factorization.

838106856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7778 (or 7771 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 838106856 is about 28950.0752330629. The cubic root of 838106856 is about 942.8294316137.

The spelling of 838106856 in words is "eight hundred thirty-eight million, one hundred six thousand, eight hundred fifty-six".