385684727 has 4 divisors (see below), whose sum is σ = 385851960. Its totient is φ = 385517496.

The previous prime is 385684721. The next prime is 385684751. The reversal of 385684727 is 727486583.

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 385684727 - 2²⁰ = 384636151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385684721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80108 + ... + 84785.

It is an arithmetic number, because the mean of its divisors is an integer number (96462990).

Almost surely, 2^385684727 is an apocalyptic number.

385684727 is a deficient number, since it is larger than the sum of its proper divisors (167233).

385684727 is a wasteful number, since it uses less digits than its factorization.

385684727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167232.

The product of its digits is 2257920, while the sum is 50.

The square root of 385684727 is about 19638.8575787901. The cubic root of 385684727 is about 727.9096558731.

The spelling of 385684727 in words is "three hundred eighty-five million, six hundred eighty-four thousand, seven hundred twenty-seven".