389738 has 4 divisors (see below), whose sum is σ = 584610. Its totient is φ = 194868.

The previous prime is 389723. The next prime is 389743. The reversal of 389738 is 837983.

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., 243049 + 146689 = 493^2 + 383^2 .

It is a Curzon number.

It is an unprimeable number.

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, 97433 + ... + 97436.

2³⁸⁹⁷³⁸ is an apocalyptic number.

389738 is a deficient number, since it is larger than the sum of its proper divisors (194872).

389738 is a wasteful number, since it uses less digits than its factorization.

389738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194871.

The product of its digits is 36288, while the sum is 38.

The square root of 389738 is about 624.2899967163. The cubic root of 389738 is about 73.0450713096.

The spelling of 389738 in words is "three hundred eighty-nine thousand, seven hundred thirty-eight".