197959660 has 12 divisors (see below), whose sum is σ = 415715328. Its totient is φ = 79183856.

The previous prime is 197959649. The next prime is 197959661. The reversal of 197959660 is 66959791.

It is a junction number, because it is equal to n+sod(n) for n = 197959598 and 197959607.

It is not an unprimeable number, because it can be changed into a prime (197959661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4948972 + ... + 4949011.

It is an arithmetic number, because the mean of its divisors is an integer number (34642944).

Almost surely, 2^197959660 is an apocalyptic number.

197959660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

197959660 is an abundant number, since it is smaller than the sum of its proper divisors (217755668).

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

197959660 is a wasteful number, since it uses less digits than its factorization.

197959660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9897992 (or 9897990 counting only the distinct ones).

The product of its (nonzero) digits is 918540, while the sum is 52.

The square root of 197959660 is about 14069.8137869696. The cubic root of 197959660 is about 582.8080830189.

The spelling of 197959660 in words is "one hundred ninety-seven million, nine hundred fifty-nine thousand, six hundred sixty".