389630 has 16 divisors (see below), whose sum is σ = 717120. Its totient is φ = 152352.

The previous prime is 389629. The next prime is 389651. The reversal of 389630 is 36983.

389630 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 389593 and 389602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56 + ... + 884.

It is an arithmetic number, because the mean of its divisors is an integer number (44820).

2³⁸⁹⁶³⁰ is an apocalyptic number.

389630 is a deficient number, since it is larger than the sum of its proper divisors (327490).

389630 is a wasteful number, since it uses less digits than its factorization.

389630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883.

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

The square root of 389630 is about 624.2034924606. The cubic root of 389630 is about 73.0383235316.

It can be divided in two parts, 38 and 9630, that multiplied together give a triangular number (365940 = T₈₅₅).

The spelling of 389630 in words is "three hundred eighty-nine thousand, six hundred thirty".