856914271 has 2 divisors, whose sum is σ = 856914272. Its totient is φ = 856914270.

The previous prime is 856914259. The next prime is 856914283. The reversal of 856914271 is 172419658.

It is a balanced prime because it is at equal distance from previous prime (856914259) and next prime (856914283).

It is a cyclic number.

It is not a de Polignac number, because 856914271 - 2¹³ = 856906079 is a prime.

It is a super-2 number, since 2×856914271² = 1468604135686922882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (856914221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 428457135 + 428457136.

It is an arithmetic number, because the mean of its divisors is an integer number (428457136).

Almost surely, 2^856914271 is an apocalyptic number.

856914271 is a deficient number, since it is larger than the sum of its proper divisors (1).

856914271 is an equidigital number, since it uses as much as digits as its factorization.

856914271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 43.

The square root of 856914271 is about 29273.0980765617. The cubic root of 856914271 is about 949.8298018274.

The spelling of 856914271 in words is "eight hundred fifty-six million, nine hundred fourteen thousand, two hundred seventy-one".