389629 has 2 divisors, whose sum is σ = 389630. Its totient is φ = 389628.

The previous prime is 389621. The next prime is 389651. The reversal of 389629 is 926983.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 362404 + 27225 = 602^2 + 165^2 .

It is an emirp because it is prime and its reverse (926983) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 389629 - 2³ = 389621 is a prime.

389629 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (389621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194814 + 194815.

It is an arithmetic number, because the mean of its divisors is an integer number (194815).

389629 is a Friedman number, since it can be written as (3+2)^8-996, using all its digits and the basic arithmetic operations.

2³⁸⁹⁶²⁹ is an apocalyptic number.

It is an amenable number.

389629 is a deficient number, since it is larger than the sum of its proper divisors (1).

389629 is an equidigital number, since it uses as much as digits as its factorization.

389629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 37.

The square root of 389629 is about 624.2026914392. The cubic root of 389629 is about 73.0382610464.

The spelling of 389629 in words is "three hundred eighty-nine thousand, six hundred twenty-nine".