398589812 has 12 divisors (see below), whose sum is σ = 704305056. Its totient is φ = 197359800.

The previous prime is 398589743. The next prime is 398589827. The reversal of 398589812 is 218985893.

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 3 ways as a sum of consecutive naturals, for example, 483314 + ... + 484137.

It is an arithmetic number, because the mean of its divisors is an integer number (58692088).

Almost surely, 2^398589812 is an apocalyptic number.

It is an amenable number.

398589812 is a deficient number, since it is larger than the sum of its proper divisors (305715244).

398589812 is a wasteful number, since it uses less digits than its factorization.

398589812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967558 (or 967556 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 53.

The square root of 398589812 is about 19964.7141727599. The cubic root of 398589812 is about 735.9394173708.

The spelling of 398589812 in words is "three hundred ninety-eight million, five hundred eighty-nine thousand, eight hundred twelve".