385547871 has 4 divisors (see below), whose sum is σ = 514063832. Its totient is φ = 257031912.

The previous prime is 385547861. The next prime is 385547891. The reversal of 385547871 is 178745583.

It is a happy number.

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

It is not a de Polignac number, because 385547871 - 2¹⁸ = 385285727 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 385547871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385547861) 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, 64257976 + ... + 64257981.

It is an arithmetic number, because the mean of its divisors is an integer number (128515958).

Almost surely, 2^385547871 is an apocalyptic number.

385547871 is a deficient number, since it is larger than the sum of its proper divisors (128515961).

385547871 is a wasteful number, since it uses less digits than its factorization.

385547871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128515960.

The product of its digits is 940800, while the sum is 48.

The square root of 385547871 is about 19635.3729529133. The cubic root of 385547871 is about 727.8235487654.

The spelling of 385547871 in words is "three hundred eighty-five million, five hundred forty-seven thousand, eight hundred seventy-one".