385984347 has 16 divisors (see below), whose sum is σ = 588567552. Its totient is φ = 220412160.

The previous prime is 385984307. The next prime is 385984349. The reversal of 385984347 is 743489583.

It is not a de Polignac number, because 385984347 - 2¹¹ = 385982299 is a prime.

It is a super-2 number, since 2×385984347² = 297967832258032818, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 385984347.

It is not an unprimeable number, because it can be changed into a prime (385984349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30222 + ... + 41052.

It is an arithmetic number, because the mean of its divisors is an integer number (36785472).

Almost surely, 2^385984347 is an apocalyptic number.

385984347 is a deficient number, since it is larger than the sum of its proper divisors (202583205).

385984347 is a wasteful number, since it uses less digits than its factorization.

385984347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12538.

The product of its digits is 2903040, while the sum is 51.

The square root of 385984347 is about 19646.4843419885. The cubic root of 385984347 is about 728.0980998050.

The spelling of 385984347 in words is "three hundred eighty-five million, nine hundred eighty-four thousand, three hundred forty-seven".