389306 has 4 divisors (see below), whose sum is σ = 583962. Its totient is φ = 194652.

The previous prime is 389303. The next prime is 389357. The reversal of 389306 is 603983.

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

It can be written as a sum of positive squares in only one way, i.e., 241081 + 148225 = 491^2 + 385^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 389306.

It is not an unprimeable number, because it can be changed into a prime (389303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97325 + ... + 97328.

2³⁸⁹³⁰⁶ is an apocalyptic number.

389306 is a deficient number, since it is larger than the sum of its proper divisors (194656).

389306 is a wasteful number, since it uses less digits than its factorization.

389306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194655.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 389306 is about 623.9439077353. The cubic root of 389306 is about 73.0180727131.

The spelling of 389306 in words is "three hundred eighty-nine thousand, three hundred six".