389599828 has 12 divisors (see below), whose sum is σ = 682268020. Its totient is φ = 194666112.

The previous prime is 389599813. The next prime is 389599849. The reversal of 389599828 is 828995983.

It can be written as a sum of positive squares in 2 ways, for example, as 91623184 + 297976644 = 9572^2 + 17262^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26751 + ... + 38662.

Almost surely, 2^389599828 is an apocalyptic number.

It is an amenable number.

389599828 is a deficient number, since it is larger than the sum of its proper divisors (292668192).

389599828 is a wasteful number, since it uses less digits than its factorization.

389599828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66906 (or 66904 counting only the distinct ones).

The product of its digits is 11197440, while the sum is 61.

The square root of 389599828 is about 19738.2833093458. The cubic root of 389599828 is about 730.3643817954.

The spelling of 389599828 in words is "three hundred eighty-nine million, five hundred ninety-nine thousand, eight hundred twenty-eight".