389937485 has 16 divisors (see below), whose sum is σ = 537981696. Its totient is φ = 265780608.

The previous prime is 389937473. The next prime is 389937533. The reversal of 389937485 is 584739983.

It is a cyclic number.

It is not a de Polignac number, because 389937485 - 2⁶ = 389937421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 389937485.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27512 + ... + 39201.

It is an arithmetic number, because the mean of its divisors is an integer number (33623856).

Almost surely, 2^389937485 is an apocalyptic number.

389937485 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

389937485 is a deficient number, since it is larger than the sum of its proper divisors (148044211).

389937485 is a wasteful number, since it uses less digits than its factorization.

389937485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66892.

The product of its digits is 6531840, while the sum is 56.

The square root of 389937485 is about 19746.8348096600. The cubic root of 389937485 is about 730.5753174087.

The spelling of 389937485 in words is "three hundred eighty-nine million, nine hundred thirty-seven thousand, four hundred eighty-five".