197963520 has 144 divisors (see below), whose sum is σ = 653033472. Its totient is φ = 51056640.

The previous prime is 197963477. The next prime is 197963537. The reversal of 197963520 is 25369791.

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 15 ways as a sum of consecutive naturals, for example, 118209 + ... + 119871.

Almost surely, 2^197963520 is an apocalyptic number.

197963520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197963520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (326516736).

197963520 is an abundant number, since it is smaller than the sum of its proper divisors (455069952).

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

197963520 is a wasteful number, since it uses less digits than its factorization.

197963520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1718 (or 1704 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 42.

The square root of 197963520 is about 14069.9509594028. The cubic root of 197963520 is about 582.8118710375.

The spelling of 197963520 in words is "one hundred ninety-seven million, nine hundred sixty-three thousand, five hundred twenty".