197993208 has 64 divisors (see below), whose sum is σ = 585216000. Its totient is φ = 54617472.

The previous prime is 197993189. The next prime is 197993221. The reversal of 197993208 is 802399791.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15448 + ... + 25191.

It is an arithmetic number, because the mean of its divisors is an integer number (9144000).

Almost surely, 2^197993208 is an apocalyptic number.

It is an amenable number.

197993208 is an abundant number, since it is smaller than the sum of its proper divisors (387222792).

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

197993208 is a wasteful number, since it uses less digits than its factorization.

197993208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40684 (or 40680 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 48.

The square root of 197993208 is about 14071.0059341896. The cubic root of 197993208 is about 582.8410037685.

The spelling of 197993208 in words is "one hundred ninety-seven million, nine hundred ninety-three thousand, two hundred eight".