198593816 has 16 divisors (see below), whose sum is σ = 377609040. Its totient is φ = 97898080.

The previous prime is 198593803. The next prime is 198593831. The reversal of 198593816 is 618395891.

It is a happy number.

198593816 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 174251 + ... + 175386.

It is an arithmetic number, because the mean of its divisors is an integer number (23600565).

Almost surely, 2^198593816 is an apocalyptic number.

It is an amenable number.

198593816 is a deficient number, since it is larger than the sum of its proper divisors (179015224).

198593816 is a wasteful number, since it uses less digits than its factorization.

198593816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349714 (or 349710 counting only the distinct ones).

The product of its digits is 466560, while the sum is 50.

The square root of 198593816 is about 14092.3318155655. The cubic root of 198593816 is about 583.4297539300.

The spelling of 198593816 in words is "one hundred ninety-eight million, five hundred ninety-three thousand, eight hundred sixteen".