385947183 has 16 divisors (see below), whose sum is σ = 524761056. Its totient is φ = 252243840.

The previous prime is 385947173. The next prime is 385947229. The reversal of 385947183 is 381749583.

It is not a de Polignac number, because 385947183 - 2⁵ = 385947151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385947103) 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 in 15 ways as a sum of consecutive naturals, for example, 54685 + ... + 61337.

It is an arithmetic number, because the mean of its divisors is an integer number (32797566).

Almost surely, 2^385947183 is an apocalyptic number.

385947183 is a deficient number, since it is larger than the sum of its proper divisors (138813873).

385947183 is a wasteful number, since it uses less digits than its factorization.

385947183 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7034.

The product of its digits is 725760, while the sum is 48.

The square root of 385947183 is about 19645.5385011457. The cubic root of 385947183 is about 728.0747310627.

The spelling of 385947183 in words is "three hundred eighty-five million, nine hundred forty-seven thousand, one hundred eighty-three".