385643883 has 32 divisors (see below), whose sum is σ = 539320320. Its totient is φ = 244922400.

The previous prime is 385643837. The next prime is 385643899. The reversal of 385643883 is 388346583.

It is not a de Polignac number, because 385643883 - 2⁹ = 385643371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (385643183) 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 31 ways as a sum of consecutive naturals, for example, 1256016 + ... + 1256322.

It is an arithmetic number, because the mean of its divisors is an integer number (16853760).

Almost surely, 2^385643883 is an apocalyptic number.

385643883 is a deficient number, since it is larger than the sum of its proper divisors (153676437).

385643883 is a wasteful number, since it uses less digits than its factorization.

385643883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567.

The product of its digits is 1658880, while the sum is 48.

The square root of 385643883 is about 19637.8176740696. The cubic root of 385643883 is about 727.8839597631.

The spelling of 385643883 in words is "three hundred eighty-five million, six hundred forty-three thousand, eight hundred eighty-three".