385784893 has 16 divisors (see below), whose sum is σ = 447370560. Its totient is φ = 329469696.

The previous prime is 385784881. The next prime is 385784897. The reversal of 385784893 is 398487583.

It is a cyclic number.

It is not a de Polignac number, because 385784893 - 2²¹ = 383687741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385784897) 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 15 ways as a sum of consecutive naturals, for example, 1755 + ... + 27832.

It is an arithmetic number, because the mean of its divisors is an integer number (27960660).

Almost surely, 2^385784893 is an apocalyptic number.

It is an amenable number.

385784893 is a deficient number, since it is larger than the sum of its proper divisors (61585667).

385784893 is a wasteful number, since it uses less digits than its factorization.

385784893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29676.

The product of its digits is 5806080, while the sum is 55.

The square root of 385784893 is about 19641.4076124905. The cubic root of 385784893 is about 727.9726654441.

The spelling of 385784893 in words is "three hundred eighty-five million, seven hundred eighty-four thousand, eight hundred ninety-three".