389626 has 4 divisors (see below), whose sum is σ = 584442. Its totient is φ = 194812.

The previous prime is 389621. The next prime is 389629. The reversal of 389626 is 626983.

It is a happy number.

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., 249001 + 140625 = 499^2 + 375^2 .

It is a junction number, because it is equal to n+sod(n) for n = 389591 and 389600.

It is not an unprimeable number, because it can be changed into a prime (389621) by changing a digit.

389626 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97405 + ... + 97408.

2³⁸⁹⁶²⁶ is an apocalyptic number.

389626 is a deficient number, since it is larger than the sum of its proper divisors (194816).

389626 is a wasteful number, since it uses less digits than its factorization.

389626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194815.

The product of its digits is 15552, while the sum is 34.

The square root of 389626 is about 624.2002883690. The cubic root of 389626 is about 73.0380735900.

The spelling of 389626 in words is "three hundred eighty-nine thousand, six hundred twenty-six".