855476117 has 2 divisors, whose sum is σ = 855476118. Its totient is φ = 855476116.

The previous prime is 855476113. The next prime is 855476131. The reversal of 855476117 is 711674558.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 839202961 + 16273156 = 28969^2 + 4034^2 .

It is a cyclic number.

It is not a de Polignac number, because 855476117 - 2² = 855476113 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (855476113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427738058 + 427738059.

It is an arithmetic number, because the mean of its divisors is an integer number (427738059).

Almost surely, 2^855476117 is an apocalyptic number.

It is an amenable number.

855476117 is a deficient number, since it is larger than the sum of its proper divisors (1).

855476117 is an equidigital number, since it uses as much as digits as its factorization.

855476117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 235200, while the sum is 44.

The square root of 855476117 is about 29248.5233302469. The cubic root of 855476117 is about 949.2981397649.

The spelling of 855476117 in words is "eight hundred fifty-five million, four hundred seventy-six thousand, one hundred seventeen".