389526 has 8 divisors (see below), whose sum is σ = 779064. Its totient is φ = 129840.

The previous prime is 389513. The next prime is 389527. The reversal of 389526 is 625983.

389526 = 86² + 87² + ... + 121².

It is a happy number.

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

389526 is an admirable number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 389526.

It is not an unprimeable number, because it can be changed into a prime (389527) 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 3 ways as a sum of consecutive naturals, for example, 32455 + ... + 32466.

It is an arithmetic number, because the mean of its divisors is an integer number (97383).

2³⁸⁹⁵²⁶ is an apocalyptic number.

389526 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

389526 is a wasteful number, since it uses less digits than its factorization.

389526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64926.

The product of its digits is 12960, while the sum is 33.

The square root of 389526 is about 624.1201807344. The cubic root of 389526 is about 73.0318244927.

The spelling of 389526 in words is "three hundred eighty-nine thousand, five hundred twenty-six".