842775471 has 18 divisors (see below), whose sum is σ = 1243823672. Its totient is φ = 549883080.

The previous prime is 842775469. The next prime is 842775473. The reversal of 842775471 is 174577248.

842775471 is a `hidden beast` number, since 84 + 27 + 7 + 547 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (842775469) and next prime (842775473).

It is not a de Polignac number, because 842775471 - 2¹ = 842775469 is a prime.

It is a super-3 number, since 3×842775471³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842775473) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1315 + ... + 41076.

Almost surely, 2^842775471 is an apocalyptic number.

842775471 is a deficient number, since it is larger than the sum of its proper divisors (401048201).

842775471 is a wasteful number, since it uses less digits than its factorization.

842775471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42491 (or 42441 counting only the distinct ones).

The product of its digits is 439040, while the sum is 45.

The square root of 842775471 is about 29030.5954296497. The cubic root of 842775471 is about 944.5768459048.

The spelling of 842775471 in words is "eight hundred forty-two million, seven hundred seventy-five thousand, four hundred seventy-one".