389851 has 16 divisors (see below), whose sum is σ = 499968. Its totient is φ = 295200.

The previous prime is 389849. The next prime is 389867. The reversal of 389851 is 158983.

It is a cyclic number.

It is not a de Polignac number, because 389851 - 2¹ = 389849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (389891) 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, 4656 + ... + 4738.

It is an arithmetic number, because the mean of its divisors is an integer number (31248).

2³⁸⁹⁸⁵¹ is an apocalyptic number.

389851 is a deficient number, since it is larger than the sum of its proper divisors (110117).

389851 is a wasteful number, since it uses less digits than its factorization.

389851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162.

The product of its digits is 8640, while the sum is 34.

The square root of 389851 is about 624.3804929688. The cubic root of 389851 is about 73.0521301504.

It can be divided in two parts, 38 and 9851, that added together give a palindrome (9889).

The spelling of 389851 in words is "three hundred eighty-nine thousand, eight hundred fifty-one".