197707066 has 8 divisors (see below), whose sum is σ = 302156244. Its totient is φ = 96988320.

The previous prime is 197707063. The next prime is 197707087. The reversal of 197707066 is 660707791.

It is a happy number.

197707066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 156375025 + 41332041 = 12505^2 + 6429^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (197707061) 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, 932475 + ... + 932686.

Almost surely, 2^197707066 is an apocalyptic number.

197707066 is a deficient number, since it is larger than the sum of its proper divisors (104449178).

197707066 is a wasteful number, since it uses less digits than its factorization.

197707066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1865216.

The product of its (nonzero) digits is 111132, while the sum is 43.

The square root of 197707066 is about 14060.8344702582. The cubic root of 197707066 is about 582.5600922858.

The spelling of 197707066 in words is "one hundred ninety-seven million, seven hundred seven thousand, sixty-six".