389897382 has 16 divisors (see below), whose sum is σ = 891194112. Its totient is φ = 111399240.

The previous prime is 389897381. The next prime is 389897399. The reversal of 389897382 is 283798983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389897381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4641594 + ... + 4641677.

It is an arithmetic number, because the mean of its divisors is an integer number (55699632).

Almost surely, 2^389897382 is an apocalyptic number.

389897382 is an abundant number, since it is smaller than the sum of its proper divisors (501296730).

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

389897382 is a wasteful number, since it uses less digits than its factorization.

389897382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9283283.

The product of its digits is 5225472, while the sum is 57.

The square root of 389897382 is about 19745.8193549926. The cubic root of 389897382 is about 730.5502712859.

The spelling of 389897382 in words is "three hundred eighty-nine million, eight hundred ninety-seven thousand, three hundred eighty-two".