197920966 has 16 divisors (see below), whose sum is σ = 303449328. Its totient is φ = 96789600.

The previous prime is 197920963. The next prime is 197920979. The reversal of 197920966 is 669029791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197920963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17601 + ... + 26563.

It is an arithmetic number, because the mean of its divisors is an integer number (18965583).

Almost surely, 2^197920966 is an apocalyptic number.

197920966 is a deficient number, since it is larger than the sum of its proper divisors (105528362).

197920966 is a wasteful number, since it uses less digits than its factorization.

197920966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9207.

The product of its (nonzero) digits is 367416, while the sum is 49.

The square root of 197920966 is about 14068.4386482651. The cubic root of 197920966 is about 582.7701078654.

The spelling of 197920966 in words is "one hundred ninety-seven million, nine hundred twenty thousand, nine hundred sixty-six".