197712630 has 64 divisors (see below), whose sum is σ = 528768000. Its totient is φ = 52570080.

The previous prime is 197712611. The next prime is 197712653. The reversal of 197712630 is 36217791.

It is a happy number.

197712630 is a `hidden beast` number, since 1 + 9 + 7 + 7 + 12 + 630 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 115521 + ... + 117219.

It is an arithmetic number, because the mean of its divisors is an integer number (8262000).

Almost surely, 2^197712630 is an apocalyptic number.

197712630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 197712630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264384000).

197712630 is an abundant number, since it is smaller than the sum of its proper divisors (331055370).

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

197712630 is a wasteful number, since it uses less digits than its factorization.

197712630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2146 (or 2140 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 197712630 is about 14061.0323234107. The cubic root of 197712630 is about 582.5655571620.

The spelling of 197712630 in words is "one hundred ninety-seven million, seven hundred twelve thousand, six hundred thirty".