855938847 has 16 divisors (see below), whose sum is σ = 1204139520. Its totient is φ = 539323200.

The previous prime is 855938827. The next prime is 855938879. The reversal of 855938847 is 748839558.

It is a happy number.

855938847 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 855938847 - 2⁷ = 855938719 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855938827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7147 + ... + 41987.

It is an arithmetic number, because the mean of its divisors is an integer number (75258720).

Almost surely, 2^855938847 is an apocalyptic number.

855938847 is a deficient number, since it is larger than the sum of its proper divisors (348200673).

855938847 is a wasteful number, since it uses less digits than its factorization.

855938847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35294.

The product of its digits is 9676800, while the sum is 57.

The square root of 855938847 is about 29256.4325747347. The cubic root of 855938847 is about 949.4692684665.

The spelling of 855938847 in words is "eight hundred fifty-five million, nine hundred thirty-eight thousand, eight hundred forty-seven".