197698320 has 100 divisors (see below), whose sum is σ = 686658060. Its totient is φ = 52717824.

The previous prime is 197698301. The next prime is 197698331. The reversal of 197698320 is 23896791.

It can be written as a sum of positive squares in 2 ways, for example, as 21233664 + 176464656 = 4608^2 + 13284^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8775 + ... + 21734.

Almost surely, 2^197698320 is an apocalyptic number.

197698320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

197698320 is an abundant number, since it is smaller than the sum of its proper divisors (488959740).

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

197698320 is a wasteful number, since it uses less digits than its factorization.

197698320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30534 (or 30519 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 197698320 is about 14060.5234610949. The cubic root of 197698320 is about 582.5515018902.

The spelling of 197698320 in words is "one hundred ninety-seven million, six hundred ninety-eight thousand, three hundred twenty".