856079438 has 16 divisors (see below), whose sum is σ = 1361006064. Its totient is φ = 402460800.

The previous prime is 856079407. The next prime is 856079443. The reversal of 856079438 is 834970658.

856079438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23756 + ... + 47712.

It is an arithmetic number, because the mean of its divisors is an integer number (85062879).

Almost surely, 2^856079438 is an apocalyptic number.

856079438 is a deficient number, since it is larger than the sum of its proper divisors (504926626).

856079438 is a wasteful number, since it uses less digits than its factorization.

856079438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25027.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The square root of 856079438 is about 29258.8352126328. The cubic root of 856079438 is about 949.5212501887.

The spelling of 856079438 in words is "eight hundred fifty-six million, seventy-nine thousand, four hundred thirty-eight".