197716320 has 72 divisors (see below), whose sum is σ = 674711856. Its totient is φ = 52723968.

The previous prime is 197716313. The next prime is 197716331. The reversal of 197716320 is 23617791.

It is a happy number.

197716320 is a `hidden beast` number, since 19 + 7 + 7 + 1 + 632 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 67212 + ... + 70091.

It is an arithmetic number, because the mean of its divisors is an integer number (9370998).

Almost surely, 2^197716320 is an apocalyptic number.

197716320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

197716320 is an abundant number, since it is smaller than the sum of its proper divisors (476995536).

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

197716320 is a wasteful number, since it uses less digits than its factorization.

197716320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137324 (or 137313 counting only the distinct ones).

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

The square root of 197716320 is about 14061.1635364930. The cubic root of 197716320 is about 582.5691813674.

The spelling of 197716320 in words is "one hundred ninety-seven million, seven hundred sixteen thousand, three hundred twenty".