856916338 has 8 divisors (see below), whose sum is σ = 1289508480. Its totient is φ = 427080180.

The previous prime is 856916327. The next prime is 856916351. The reversal of 856916338 is 833619658.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×856916338² = 1468611220662660488, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 856916291 and 856916300.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 688218 + ... + 689461.

It is an arithmetic number, because the mean of its divisors is an integer number (161188560).

Almost surely, 2^856916338 is an apocalyptic number.

856916338 is a deficient number, since it is larger than the sum of its proper divisors (432592142).

856916338 is a wasteful number, since it uses less digits than its factorization.

856916338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1377992.

The product of its digits is 933120, while the sum is 49.

The square root of 856916338 is about 29273.1333819938. The cubic root of 856916338 is about 949.8305655353.

It can be divided in two parts, 85691 and 6338, that added together give a palindrome (92029).

The spelling of 856916338 in words is "eight hundred fifty-six million, nine hundred sixteen thousand, three hundred thirty-eight".