814385471 has 4 divisors (see below), whose sum is σ = 833324712. Its totient is φ = 795446232.

The previous prime is 814385461. The next prime is 814385477. The reversal of 814385471 is 174583418.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 814385471 - 2¹⁰ = 814384447 is a prime.

It is a super-3 number, since 3×814385471³ (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 (814385477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9469556 + ... + 9469641.

It is an arithmetic number, because the mean of its divisors is an integer number (208331178).

Almost surely, 2^814385471 is an apocalyptic number.

814385471 is a deficient number, since it is larger than the sum of its proper divisors (18939241).

814385471 is a wasteful number, since it uses less digits than its factorization.

814385471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18939240.

The product of its digits is 107520, while the sum is 41.

The square root of 814385471 is about 28537.4398115879. The cubic root of 814385471 is about 933.8490307249.

The spelling of 814385471 in words is "eight hundred fourteen million, three hundred eighty-five thousand, four hundred seventy-one".