385471 has 2 divisors, whose sum is σ = 385472. Its totient is φ = 385470.

The previous prime is 385433. The next prime is 385481. The reversal of 385471 is 174583.

It is a strong prime.

It is an emirp because it is prime and its reverse (174583) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-385471 is a prime.

It is a super-3 number, since 3×385471³ = 171828969767526333, which contains 333 as substring.

385471 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (385481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192735 + 192736.

It is an arithmetic number, because the mean of its divisors is an integer number (192736).

2³⁸⁵⁴⁷¹ is an apocalyptic number.

385471 is a deficient number, since it is larger than the sum of its proper divisors (1).

385471 is an equidigital number, since it uses as much as digits as its factorization.

385471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3360, while the sum is 28.

The square root of 385471 is about 620.8631089057. The cubic root of 385471 is about 72.7775174104. Note that the first 3 decimals are identical.

The spelling of 385471 in words is "three hundred eighty-five thousand, four hundred seventy-one".