197543396 has 12 divisors (see below), whose sum is σ = 345800448. Its totient is φ = 98743272.

The previous prime is 197543393. The next prime is 197543431. The reversal of 197543396 is 693345791.

197543396 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 197543396.

It is not an unprimeable number, because it can be changed into a prime (197543393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20105 + ... + 28271.

It is an arithmetic number, because the mean of its divisors is an integer number (28816704).

Almost surely, 2^197543396 is an apocalyptic number.

It is an amenable number.

197543396 is a deficient number, since it is larger than the sum of its proper divisors (148257052).

197543396 is a wasteful number, since it uses less digits than its factorization.

197543396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14218 (or 14216 counting only the distinct ones).

The product of its digits is 612360, while the sum is 47.

The square root of 197543396 is about 14055.0131981439. The cubic root of 197543396 is about 582.3992922105.

The spelling of 197543396 in words is "one hundred ninety-seven million, five hundred forty-three thousand, three hundred ninety-six".