197712930 has 32 divisors (see below), whose sum is σ = 475790400. Its totient is φ = 52581312.

The previous prime is 197712887. The next prime is 197712937. The reversal of 197712930 is 39217791.

It is not an unprimeable number, because it can be changed into a prime (197712937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2676 + ... + 20064.

It is an arithmetic number, because the mean of its divisors is an integer number (14868450).

Almost surely, 2^197712930 is an apocalyptic number.

197712930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

197712930 is an abundant number, since it is smaller than the sum of its proper divisors (278077470).

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

197712930 is a wasteful number, since it uses less digits than its factorization.

197712930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17778.

The product of its (nonzero) digits is 23814, while the sum is 39.

The square root of 197712930 is about 14061.0429911867. The cubic root of 197712930 is about 582.5658518145.

The spelling of 197712930 in words is "one hundred ninety-seven million, seven hundred twelve thousand, nine hundred thirty".