389611 has 4 divisors (see below), whose sum is σ = 392112. Its totient is φ = 387112.

The previous prime is 389591. The next prime is 389621. The reversal of 389611 is 116983.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 389611 - 2⁵ = 389579 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 389611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389621) 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 3 ways as a sum of consecutive naturals, for example, 1000 + ... + 1333.

It is an arithmetic number, because the mean of its divisors is an integer number (98028).

2³⁸⁹⁶¹¹ is an apocalyptic number.

389611 is the 334-th nonagonal number.

389611 is a deficient number, since it is larger than the sum of its proper divisors (2501).

389611 is a wasteful number, since it uses less digits than its factorization.

389611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2500.

The product of its digits is 1296, while the sum is 28.

The square root of 389611 is about 624.1882728793. The cubic root of 389611 is about 73.0371362935.

It can be divided in two parts, 389 and 611, that added together give a cube (1000 = 10³).

The spelling of 389611 in words is "three hundred eighty-nine thousand, six hundred eleven".