389405111 has 16 divisors (see below), whose sum is σ = 432216000. Its totient is φ = 348953088.

The previous prime is 389405087. The next prime is 389405117. The reversal of 389405111 is 111504983.

It is a cyclic number.

It is not a de Polignac number, because 389405111 - 2⁶ = 389405047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389405117) 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, 87365 + ... + 91713.

It is an arithmetic number, because the mean of its divisors is an integer number (27013500).

Almost surely, 2^389405111 is an apocalyptic number.

389405111 is a deficient number, since it is larger than the sum of its proper divisors (42810889).

389405111 is a wasteful number, since it uses less digits than its factorization.

389405111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4618.

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 389405111 is about 19733.3502224027. The cubic root of 389405111 is about 730.2426859339.

The spelling of 389405111 in words is "three hundred eighty-nine million, four hundred five thousand, one hundred eleven".