389937 has 8 divisors (see below), whose sum is σ = 547360. Its totient is φ = 246240.

The previous prime is 389927. The next prime is 389941. The reversal of 389937 is 739983.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 389937 - 2¹⁴ = 373553 is a prime.

It is a Duffinian number.

389937 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 389895 and 389904.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 389937.

It is not an unprimeable number, because it can be changed into a prime (389927) 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 in 7 ways as a sum of consecutive naturals, for example, 3364 + ... + 3477.

It is an arithmetic number, because the mean of its divisors is an integer number (68420).

2³⁸⁹⁹³⁷ is an apocalyptic number.

It is an amenable number.

389937 is a deficient number, since it is larger than the sum of its proper divisors (157423).

389937 is a wasteful number, since it uses less digits than its factorization.

389937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6863.

The product of its digits is 40824, while the sum is 39.

The square root of 389937 is about 624.4493574342. The cubic root of 389937 is about 73.0575014515.

It can be divided in two parts, 389 and 937, that added together give a triangular number (1326 = T₅₁).

The spelling of 389937 in words is "three hundred eighty-nine thousand, nine hundred thirty-seven".