389581111 has 16 divisors (see below), whose sum is σ = 419696640. Its totient is φ = 360491040.

The previous prime is 389581109. The next prime is 389581117. The reversal of 389581111 is 111185983.

It is a cyclic number.

It is not a de Polignac number, because 389581111 - 2¹ = 389581109 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 (389581117) 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, 264106 + ... + 265576.

It is an arithmetic number, because the mean of its divisors is an integer number (26231040).

Almost surely, 2^389581111 is an apocalyptic number.

389581111 is a deficient number, since it is larger than the sum of its proper divisors (30115529).

389581111 is a wasteful number, since it uses less digits than its factorization.

389581111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1806.

The product of its digits is 8640, while the sum is 37.

The square root of 389581111 is about 19737.8091742726. The cubic root of 389581111 is about 730.3526856497.

The spelling of 389581111 in words is "three hundred eighty-nine million, five hundred eighty-one thousand, one hundred eleven".