855032117 has 2 divisors, whose sum is σ = 855032118. Its totient is φ = 855032116.

The previous prime is 855032083. The next prime is 855032141. The reversal of 855032117 is 711230558.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 707506801 + 147525316 = 26599^2 + 12146^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-855032117 is a prime.

It is a super-2 number, since 2×855032117² = 1462159842203003378, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (855032617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427516058 + 427516059.

It is an arithmetic number, because the mean of its divisors is an integer number (427516059).

Almost surely, 2^855032117 is an apocalyptic number.

It is an amenable number.

855032117 is a deficient number, since it is larger than the sum of its proper divisors (1).

855032117 is an equidigital number, since it uses as much as digits as its factorization.

855032117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 855032117 is about 29240.9322183818. The cubic root of 855032117 is about 949.1338798456.

The spelling of 855032117 in words is "eight hundred fifty-five million, thirty-two thousand, one hundred seventeen".